fn fal762 User Guide

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Page 1

FAL

USER’s MANUAL

LIGHT AUTOMATIC RIFLE

CAL. 7.62 mm

FADRlQUt NATlONALlE HtltSTAL

Soci4tb

Anonym

” ,1

u400 HEWAL (NLCIUM)

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INTRODUCTION

The FN Light Automatic Rifle, colibre 7.62 mm NATO, usually known OS the “F. A. L.” or “L. A. R.“, and

comoetitive

and unde; all types of climatic conditions.

This rifle, which has been adopted by many

countries both within and outside NATO, was

designed and made by FN to give the user a rifle which would combine all the essential qua-

lities needed under modern fighting conditions, to a hitherto unequalled degree.

This booklet is neither for the armourer nor the

specialised officer:

the user with a weapon which is new to him and to put sufficient knowledge at his disposal to enable him to use it with maximum efficiency.

has resulted from prolonged research

trials made in various countries

Fig.

its purpose is to familiarise

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I I. CHARACTERISTICS

AND TECHNICAL DETAILS

The FN Light Automatic Rifle is an automatic weapon, calibre 7.62 mm NATO, gas-operated and with a breech block which is mechanically locked before firing can take place.

Rifle

Weights

1. a) Rifle without magazine: 4.325 kgs

prox. 9.53 Ibs) b) Magazine (steel) empty: 250 g c) Magazine (steel) filled 20 rounds Ball

Ammn.: 730 g (1 lb 98 ozs) d) Barrel. approx.

Measurements

2. a) Overall length b) Barrel length c) Sight radius

System of operation: gas, with regulator and

3. piston.

Method of feed: 20-round

4. Magazine housing : underneath the receiver.

Ejection opening

800 g (1 lb

1,090 mm (approx. 40”)

533 mm (approx.

553 mm (approx. 21$“)

magazme.

right side of receiver.

(8+ ots)

12a

ozs)

(ap-

21N)

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Cocking handle:

Chonge lever: left side of trigger frame.

Sights: adjustable, bocksight graduated from 200-600 metres, scaled by 100 m.

Rifling of barrel : 4 grooves, direction-right,

10. pitch-l in

11.

Cyclic rote of fire: 650-700 rpm.

12.

Operational rate of fire, semi-automatic: up to 60 rpm.

left side of receiver.

305

mm (1 in

12”!

Cartridge

Colibre: 7.62 mm NATO (Fig. 2).

Weight of cartridge: (for ordinary ball round

“SS

77”) approx. 24 g (0.86 oz).

Length of cartridge: 7 I mm

Weight of ordinary bullet: “FN SS 77”:

9.30 g (0.33 oz).

(2.8”).

Powder charge:

lnitiol Velocity (VO) in the “F. A. L.“:

6. 840

m/set

Muzzle Energy (EO) in the “F. A. L.“:

7. 335 kgm (2,422

Remaining Kinetic Energy at 600 metres

(656 yds): 100 kgm (723

N. 6. For further technical information and

ballistical chorocteristics, also firing tables, refer

approx. 3 g (0.1 oz).

(2,754 ft/sec).

ft.lbs).

Page 5

to FN booklet for Ammunition calibre 7.62 mm

NATO, or other handbook on thk subject.

Fig. 2

FN 7.62 mm NATO

cartrldge wtth

SS 77 bullet

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III.

FUNCTIONING

1. COCKING Before firing, the breech block mechanism is

forward, with the safety applied (change lever set

‘5”).

Insert a filled magazine obliquely in the housing under the receiver, swing it from front to rear and push fully home:

in the rifle at both front and rear.

Pull the cocking handle, on the left side of the receiver, fully to the rear, then let it go forward: a cartridge is thus introduced into the chamber; the rifle is loaded and cocked.

To fire, set the change lever either at “R” for semi-automatic fire, or at “A” for automatic fire.

2. REAR MOVEMENT OF THE MECHANISM

Pressing the trigger fires the shot.

When the bullet passes the gas port in the barrel, port of the combustion gases penetrate the regulator and thence into the gas cylinder. piston is projected to the rear, strikes the block slide, which is also driven rearwards. recoiling a few millimetres, the ramps of the slide force the rear part of the breech block to rise, thus lifting it out of engagement with its locking

the magazine is then. secured

The.

breech-

After

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shoulder in the receiver. unlocked. The recoil of slide dnd breech block continues, the extractor removes the spent case from the chamber: extraction is completed; then

the hammer, pushed by the slide, is forced to pivot to the rear.

As recoil continues, the base of the spent case contacts the ejector, an integral part of the receiver; the case is then thrown out of the gun to the right, through the ejection opening.

buring this rear movement, the return springs, housed in the butt, are compressed by the slide

rod,

hinged to the rear of the slide.

The piston has returned to its forward position,

as its

spl’ing

relaxed.

3. FORWARD ACTION OF THE MECHANISM

The mechanism is then

The return springs, compressed during the rear

movement of the mechanism, now relax and drive the breech block assembly forward. The breech

block pushes the next cartridge towards the cham-

ber, while the hammer is held in the cocked position by the safety sear: the front of the

breech block contacts the rear portion of the bar-

rel; the cartridge is chambered and the base of its case seized by the extractor claw.

The slide acts on the upper shoulder of the breech block and forces its rear end downwards, causing its lock shoulder to engage in the locking recess in the receiver. The mechanism is now

lacked.

The slide continues its forward movement alone: towards the end of its course, the safety sear is tripped by the shoulder on the rear left underside

of the slide, which causes the sear to pivot and the

hammer to be released; the rear end of the firing

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pin protrudes beyond the rear face of the slide, when the front face of the slide is.fully home.

In automatic fire, it is the safety sear which releases the hammer and thus causes the shot to be fired, because the trigger sear is not in action in this case, except for the first shot of each burst of fire.

In semi-automatic fire, it is the trigger sear which finally releases the hammer, after it has first been released by the safety sear; the mechanism has been so designed that the trigger must be released, then pressed again, to permit the following shot to be fired (see 4 below).

4. CHANGE LEVER The lever arm can occupy one of the three fol-

lowing positions:

a) An uppermost position “5” when the rifle is

at safe:

in this position, if the trigger is pressed,

it is impossible to fire because the rounded part of the change lever arm is over the trigger platform, preventing it from rising to engage the tail of the sear.

b) A front position “A”, which sets the mecha-

nism at automatic fire: before firing the rear tip

of the trigger is now so positioned in relation to the deeper bent in the change lever axis that pressing the trigger causes the sear to pivot

up-

words: the nose of the sear is consequently disen-

gaged from the hammer bent and firing takes place.

In addition, the nose of the trigger sear has

been swung downwards so that it cannot contact

the hammer, which is controlled by the safety

sear only, so long as the trigger is not released;

firing depends on the safety sear, this frees

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the hammer each time the mechanism closes after the breech is completely locked: firing is auto-

matic,

When the firer releases the trigger, the nose

of the sear rises, catches hold of the hammer,

which then pushes the sear slightly to the rear;

this positions the tail of the sear over the heel of the trigger and the mechanism is then cocked, ready to fire the next burst.

c) A rear position “R”, which sets the

mecho-

nism at semi-automatic (single shot); the rear tip of the trigger is now against a shallower bent in the change lever than in position “A”, pressing

the trigger therefore pivots the sear to a lesser

degree so that after the first shot has been fired,

the hammer will be caught by the sear. This

moves slightly forward under the action of its spring and is thus placed in front of the heel of the trigger, i.e. no longer in contact.

Firing another cartridge is therefore impossible if pressure on the trigger is maintained.

To continue firing, the trigger must be released; when this is done, the hammer turns slightly under action of its spring;

it is in contact with the sear, it pushes the sear towards the rear so that the tail of the sear comes over the heel of the trigger; pressure on the trigger will now fire the

second shot, and so on.

Note

If automatic fire is not required, the change lever can be removed and another change lever fitted with indent for semi-automatic fire only, i.e. with 2 instead of 3 settings.

Any sol-

dier can easily make this substitution.

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5. HOLDING OPEN DEVICE

When the magazine is empty, its platform

pushes the holding open device upwards, in the

pathway of the breech block, which is thus held

to the rear, and the firer knows that his magazine

is empty. ed, depress the lever of the holding open device so that the breech block is released and can continue its forward movement.

After a filled magazine has been insert-

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IV. HANDLING

1. FILLING MAGAZINE

a) With Magazine Filler

Each rifle is usually supplied with a magazine

filler.

Fit the magazine filler over the mouth of the magazine, with the guides for the loading clip on the side of the magazine rib

Fig. 3

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Insert a loaded clip into the reor guide of

the magazine filler (fig. 3).

With the thumb as near as ‘possible to the clip, force the rounds down into the maga-

zine.

b) Without a Mogarine Filler

If the rounds are in clips, take them out.

Insert the cartridges one by one into the magazine, with the base of the round to the rib of the magazine.

Note

After filling a magazine, particularly when

a magazine filler has not been used, it is advisable to check the positioning of the

cartridges in the magazine by pressing

down with the thumb on the last round

inserted.

In the event of one or more cartridges not

sliding freely inside the magazine (jamming of the point of a round against the front wall), a correct positioning of all the

cartridges can be obtained by striking the rear wall or on the bottom of the magazine

lightly with the palm of the hand.

2. CHARGING

Insert a filled magazine front end foremost

into the magazine housing (fig. 4).

Swing the magazine into position and push

fully home.

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Fig. 4

The magazine is then secured at the rear by

the magazine catch.

Take hold of the pistol grip with the right hand.

With the left hand, pull the cocking handle

(on the left side of the receiver) to the rear and

then release it.

The forward movement ‘of the breech block will have extracted a cartridge from the maga-

zine, chambered it and then locking of the

moving parts will hove taken place

ically. The rifle is now ready to fire.

Note: During charging and loading operations, the rifle will be kept at safe (Change lever set at

“5”).

automot-

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4. RELOADING

After the lost round in the magazine has been fired, the holding open device, operated by the magazine platform, keeps the mechanism to the rear (see page 11).

Press the magazine catch (fig. 5).

Remove words.

Insert 0

Depress (fig. 6); ward.

the empty magazine, swinging it for-

filled magazine.

the lever of the holding open device

the breech block will then move

for-

Fig. 5

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Fig. 6

The rifle is now ready to fire again.

5. UNLOADING

Put the rifle at safe (change lever set at “S”).

Remove the magazine.

Pull the cocking handle fully back to extract and eject the cartridge in the chamber.

Release the cocking handle and let the mecha-

nism go forward.

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6. FIRING SINGLE SHOT

Insert a filled magazine.

Use the tip of a cartridge to push the plunger in the gas plug fully down and hold it in this position (fig. 22).

Turn the cartridge and the gas plug 180” so that the letter “G” appears on top, instead of the letter “A”.

Let the plunger return to its housing (the notch

in the plug is towards the bottom).

Carry out the loading operations (see

After firing each shot, repeat the loading ope-

page

rations.

7. FITTING THE BLANK FIRING DEVICE

This device is to be screwed on the tapped end

of the combined device (fig. 7).

14).

8. GAS REGULATION The purpose of the gas regulator is to ensure

correct functioning of the rifle with maximum gas escape, or, in other words, the minimum intake

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necessary for normal functioning, without causing undue wear on the various parts of the mechanism.

Turning the gas regulator to the right (clockwise) reduces the opening by which gas escapes, thus increasing the quantity or “intake” gas used to drive the piston to the rear.

Turning the gas regulator to the left (anti-

clockwise) causes the opposite effect: gas escape

is increased and the balance available to work the piston is decreased.

By a system of “clicks” and engagement of the

gas regulator spring, the regulator has 13 different

positions (12 “clicks” to open fully).

To make setting in any given position easier, figures are engraved on the gas regulator, the figure 1 corresponding to the completely closed

position and one figure for every 2 “clicks” open-

ing.

Example: when the figure 5 is opposite the gas hole, the gas regulation corresponds to 8 “clicks”.

Method of gas setting

There are several different ways of finding the

correct adjustment but we suggest the following

method, which has, we think, proved itself the

best :-

- Insert an empty magazine in the rifle;

All firing is carried out by inserting the car-

tridges by hand, one by one into the empty

magazine, through the ejection opening.

The correct setting is determined by the

point at which the holding open device

engages the mechanism and holds it to the

rear, or fails to do this.

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Fig. 8 Fig. 9

b) Operations

Operation 1. After

right down against

screwing the gas regulator

the gas block (fig.

8),

un-

screw by one complete turn so that the figure 7

is in line with the axis of the gas escape hole (fig. 9).

This is the fully open position and, when a round is fired, causes a “short recoil”, identifiable by the holding open device failing to engage the mechanism.

Operation 2. Close the gas regulator click by

click and fire a cartridge after each adjustment

until the breech block is held to the rear by the holding open device.

Operation 3. Now verify by firing several car-

tridges, one after the other, in the way described

above.

Operation 4. If any shot results in a failure of

the holding open device to engage the

mecha-

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nism, repeat Operation 3, after closing the gas

regulator by one click.

Operation 5.

If necessary, repeat Operation 4

until 5 consecutive shots result in the holding open device holding the mechanism to the rear 5 times.

Operation 6. The gas setting for the rifle is now

determined, but it is always advisable to allow a small reserve of “working” gas by reducing the gas escape by two additional clicks.

Note

If the special spanner (fig. 10) is not available, adjustment can be made with the point of a cartridge (fig. 1 I), or even by hand.

Fig.

Before leaving the factory, every rifle has been

Fig. 1 1

adjusted for correct gas setting.

In principle, the soldier should not alter the

gas setting; this operation ought to be done

in the presence of the unit armourer, or an

instructor.

In practice, the force with which the spent

tridge case is ejected gives on invaluable

cor-

indi-

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cation of the gas setting.

An ejection of cases

to a distance of 1.50-2 m from the rifle and

at f 45” in relation to the barrel axis can be considered normal.

Violent ejection shows that too much gas is being admitted and, in this event, the gas escape must be increased. On the contrary, weak ejection shows that

insufficient gas is being taken in and, in this

case, the gas escape should be reduced.

ZEROING

9. The rifle is zeroed, i.e. the sights are correctly

adjusted, before issue to the user but it may require some attention to correct for elevation and direction to suit individual needs.

Such correction must be done by a qualified

armourec,

or on instructor, who will have the spe-

cial tools to do this. a) Correction for Elevation

Errors in elevation are corrected by screwing the

foresight up or down. If it is screwed up, the M. P. I. will be moved down and vice-versa.

A spring detent locates and holds the foresight

in position, which forms a clicking device with the

16 equal divisions serrated under the foresight collar; this assists the armourer when calculating movement of the M. P. I. Moving the foresight

1 division (or click) is equal to a variation in

M. P. I. of 1 cm at 100 metres (approx.

0.39”

109 yds).

b) Correction for Direction

Errors in direction are corrected by moving the

backsight to the right or left.

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If the M. P. I. is to the right of the point sighted, the screw on the left of the sight is loosened and the screw on the right is screwed up, thus moving the sight laterally along its dovetail from right to left. When the correction has been made, and before shooting, tighten both screws.

If the M. P. I. is to the left of the point sighted, the sight must be moved from left to right.

A movement of 1 division (or click) is equal to

variation in M. P. I. (to right or left) of 1 cm at

100 metres (approx. 0.39” at 109 yds).

10. STOPPAGES AND IMMEDIATE ACTION The FN Light Automatic Rifle is unlikely to

be affected by variations in normal ammunition.

Obviously, this means good quality ammunition

because a bad cartridge will give rise to stoppages,

whatever the weapon that fires it.

Tighten the screw on the left.

Stoppages are generally of two

1. Those caused by fouling, due to the user’s negligence, or ignorance of his rifle, or lack of lubrication (modern powders of good quality

cause very little fouling).

2. Those caused by some mechanical deficiency (less frequent).

A mechanical stoppage, other than that caused by an empty magazine, can usually be remedied by taking immediate action, without stopping to investigate its cause.

types:-

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Procedure for immediate action

Remove the magazine;

Pull the cocking handle fully to the rear and

release; do this twice;

Replace the magazine;

Load (recock the rifle by pulling the cocking

handle to the rear and releasing so that a new round is fed into the chamber);

Resume firing.

If the stoppage recurs, consult the armourer or

instructor to find out the cause.

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V. GRENADE LAUNCHING

The F. A. L. is equipped with a combined device,

serving as both flash-hider and grenade-launcher;

with this fitment, anti-tank and anti-personnel gre-

nades can be launched with great accuracy.

Fig.

1. CARTRIDGE

A special type of ammunition is used, generally known as a propulsive, or grenade, cartridge. This cartridge has no bullet and the mouth of the case

is closed by a “star” crimping which is waxed to ensure complete tightness (fig. 12).

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HANDLING

Put the rifle at SAFE.

Unload (chop. IV, 5).

Set

the rifle for firing single shot (see chap-

ter IV, 6). With the left hand, cock the rifle.

4. With the right hand,

insert the propulsive cor- tridge in the chamber (fig. 13). Let the mechanism go forward (it is easier if

the muzzle of the gun is held downwards).

Fig. 13

Put the grenade on the launcher and make

5. sure that it is fully home

Releose the safety from the rifle and, as re-

6. quired, remove the grenade safety. The rifle

is then ready to fire.

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3. FIRING POSITIONS

Direct fire (fig. 14)

For the 3 usual positions (standing, kneeling,

prone) the method of holding the rifle is the

some.

Grasp the middle of the handguard firmly with

the left hand.

Hold the pistol grip firmly with the right hand, with the index finger securely in front of the trigger.

Hold the butt under the right armpit, never lean it on the shoulder.

Fig. 14

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6.:

A sling can be used to help take the recoil

but this is left to the discretion of the user.

Indirect fire (fig. 15)

Fig. 15

Dig the heel of the butt

the pistol grip uppermost,

Incline the rifle at the required angle.

Hold the foot down on the front of the butt to

prevent it from moving out of position.

into the earth, with

i.e. towards the firer.

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Note: So far as possible, it is advisable to avoid positioning the butt against any hard surface, such as concrete, rock, etc. This is particularly important for indirect fire from the prone position, where

the soldier naturally tends to anchor the fore part of the butt to avoid the effects of recoil.

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VI. FIELD STRIPPING

The soldier should know the field stripping routine so well thot it con be carried out in darkness. For this stripping, he will need to use the nose of

cartridge;

Remove the magazine.

Cock the mechanism to ensure that the rifle

is clear and there is no round left in the cham-

ber, allow the breech block to go forward and set the change lever at safe, leaving the hammer cocked.

STRIPPING THE MECHANISM

Press the body locking lever (on the left side)

as far as possible upwards; at the same time, press the butt/trigger frame group down-

wards, which will swing the rifle open like a shotgun (see fig. 16).

Remove the slide-breech-block assembly by taking hold of the slide rod hinged to the slide

(fig. 17).

no other tools are required.

Page 29

Fig. 16

Fig. 17

2. REMOVING THE COVER Slide the receiver cover to the rear (fig. 18).

Page 30

Fig. 18

3. SEPARATING THE SLIDE FROM THE BREECH BLOCK

Disengage the fore part of the breech block

from the slide and continue to separate with a

levering movement against the rear part of the

breech block, keeping the thumb on the rear end

of the firing pin (fig. 19).

4. REMOVING THE FIRING PIN

Exert pressure on the rear end of the firing pin

and push out its retaining pin.

not fall out easily, use the nose of a cartridge to push it out (fig. 20).

If the pin does

Page 31

Fig. 19

Fig. 20

When the retaining pin has been removed, the firing pin will come out of its housing under action of its spring (fig. 21).

Page 32

Fig. 21

5. REMOVING THE GAS

PiUG

Use the nose of a cartridge to press in the plun-

ger (fig.

in a clockwise direction (fig. 23).

22),

then turn the gas plug a quarter turn

Fig 22

Fig. 23

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In this position, the plug will be pushed from

its housing by the piston spring.

6. REMOVING THE PISTON

Remove the piston and its spring from the gas

cylinder (fig. 24).

Fig. 24

Separate the piston spring from the piston rod

(fig. 25).

Fig. 25

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Note: There is no need for the soldier to strip the

extractor.

It is necessary to use a cartridge for this, or a special tool, and it is normally done by the armourer when making o

perio?Jic

inspection.

7. ASSEMBLY AFTER FIELD STRIPPING

Replace the piston spring on the piston rod (fig. 25).

Replace the piston and its spring in the gas

cylinder (fig. 24).

Insert the gas plug,

compressng

the piston spring, with the big end of the plunger turned towards the barrel (fig. 23).

When the gas plug is fully home, rotate it

one-

eighth of a turn, so that the letter “A” moves upwards.

Use the nose of a cartridge to push the plunger and rotate so that the letter “A” appears

uppermost (fig. 22).

Replace the firing pin spring and the firing pin in the breech block (fig. 21); compress the spring by working the firing pin and replace the pin.

Replace the breech block in the slide, inserting the rear part obliquely in the slide (fig. 19). Exert pressure on the breech block so that the firing pin spring is slightly compressed and the breech block is swung downwards into its cor-

rect position in the slide.

Insert the ribs of the cover in the correspond-

ing grooves in the receiver (fig. 18) and slide the cover fully forward.

Replace the mechanism in the body, inserting the ribs of the slide in the corresponding

Page 35

grooves in the receiver.

When this is done, the

breech block should be in its forward position

(fig. 17) and the muzzle of the rifle pointing downwards; the mechanism will then fall into position correctly.

Close the rifle, still holding the muzzle downwards, to prevent any possibility of the slide rod protruding.

Page 36

VII. CLEANING AND MAINTENANCE

GENERAL REMARKS

It must be emphasized that all automatic weapons require constant cleaning and maintenance and that most of the stoppages mentioned else-

where are the result of the soldier’s negligence

or lack of knowledge of his weapon.

whether automatic or repeating rifles, should be cleaned at the end of a day’s firing and special core must be taken after firing with blank cartridges.

2. MAINTENANCE OF THE RIFLE

a) Maintenance by the soldier

The FN Rifle cal. 7.62 mm only needs to be partially stripped for this maintenance (field stripping); maintenance routine is 0s follows:-

Use the barrel cleaning brush, oiled with the special rifle the barrel several times:

Follow this by pulling through two or three dry rags;

Clean the chamber with the cleaning brush provided for this purpose;

bore

oil provided, and pass through

All weapons,

Page 37

Clean the slide, rear of the barrel and inside the body;

Clean the breech block, firing pin and its housing;

Clean underneath the extractor claw, without stripping it;

Remove the gas plug, the piston and its spring and carefully clean these parts, as they are exposed to gas fouling;

Clean the gas cylinder and wipe with a slightly oiled rag; this rag should also be passed through the barrel;

Very slightly oil the moving parts of the me-

chanism.

Inspection and maintenance by the unit ar-

mower

It is essential that the rifle should be examined

periodically by the armourer, who will check that

it is being properly cared for by the user.

All components of the rifle will then be checked for correct functioning. When this examination is made, the following special cleaning and inspection operations will also be carried out:-

Cleaning the exhaust port in the gas cylinder;

Stripping and cleaning the extractor;

Checking the gas setting;

Checking the sight and correcting, if necessary.

’

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COMPLETE

CLEANING OF BARREL AND GAS

CYLINDER

The barrel and gas cylinder must be cleaned

regularly so that they never get into such a state that the use of abrasives is necessary; all abra-

sive material such as emery paper, sand, etc., is always harmful.

The full cleaning of barrel and gas cylinder

should be done unhurriedly, when circumstances

permit, 0s follows:

Wash the barrel, using barrel brush, or sponge,

steeped in special oil.

Wash the inside of the front part of the gas

cylinder and gas block, using the brush for

cleaning the chamber and the special oil. After the barrel and gas cylinder have been

thoroughly cleaned in this way, dry carefully, using clean rags. After drying, the usually white service flannelette-should come out of the barrel and gas cylinder unstained.

After drying, slightly oil the barrel (bore and

chamber) and the gas cylinder. Dry the outside of the barrel and polish with

a greasy rag.

The pieces of flannelette for this cleaning will usually be cut to the tollowing measurements: length approx. 120 mm, width approx. 60 mm (about 5”

For possing through the barrel, use an unfolded piece, for cleaning the gas cylinder, double it over to give a loop of the cleaning rod or pullthrough.

Rags or cotton waste can be used for cleaning

the remaining parts of the rifle.

x2+“).

60x60

mm square before inserting in the

rag-

Page 39

Note: The inside of the barrel and inside of front half of the gas cylinder come into direct contact

with the combustion gases and are also submitted

to friction;

and attention. Other components are protected

against oxidising by phosphating (parts of the mechanism and receiver) and the piston and gas plug are hard chromed.

Precaution after firing

To be on the safe side, particularly in hot cli-

mates, and to make subsequent cleaning of barrel

and gas cylinder easier, the user is strongly advised

to take the following preventive measure:

Immediately ofter firing, before leaving the

firing range or scene of manceuvres, clean barrel and gas cylinder by wiping with a rag steeped in special oil (Rifle bore oil).

This precaution has the effect

Neutralising the harmful effect of any fouling

caused by residue of powder gases;

Preventing the formation of carbon deposits in the gas cylinder ond gas block;

Allowing the usual cleaning operations to be postponed for at least 24 hours, without causing any damage.

Within 48 hours of carrying out this precaution, the rifle should be completely cleaned as indicated in paragraphs 2 and 3.

they consequently require more care

of:-

Page 40

PREPAkATlON

OF RIFLE BEFORE FIRING

The L. A. R. functions with very little or

ticolly

no lubrication.

proc-

Before firing, wipe off any oil remaining on barrel and gas cylinder surfaces; if the piston and chromed part of the gas plug have been slightly oiled, dry clean these

too.

The tabulation given below gives on one side

the list of parts which can be slightly oiled, on the other the list of parts which require no oiling and which, in some cases, can be adversely affected,

if oiled.

Components,

or ports of components,

which

wtll

be very slightly oiled

OILED

Inside breech block slide.

Breech block, ot locking

shoulders.

Body, at bottom ond

olong guide grooves for slide.

Holding open device.

or parts of components, which will not be oiled before firing

LEFT DRY

- Barrel.

Piston.

Front face of breech

Components,

Gos cylinder.

Gos Plug. ) ports Outer surface of slide.

block.

Mogorine and plotform. Magazine Sights.

chromed

catch

Page 41

INDEX

I. Introduction

II.

Characteristics ond Technical Details

I I I. Functioning

Cocking

2. Rear movement of the mechanism

3. Forward action of the mechanism

4. Change lever

5. Holding open device

IV. Hondling

Fillbtg Magazine

With magazine filler

Without magazine c) Note on checking Charging

2. Loading

3. Relooding

4. Unloading

Firing single shot

Fitting the blonk firing device

Gas regulation

a) Method of gas setting

Operations

Zeroing sights

9. a) Correction for elevation

Correction for direction

10.

Stoppages and immediate

V. Grenade Launching

I. Cartridge

2. Handling

3. Firing positions a) Direct fire

Indirect fire

. . . . . . . . .

. . . .

.........

......

filler

.......

..........

............

........

...........

.........

..........

......

..........

action

. . . .

....

.....

. . . . . .

. . . .

. . .

. . . .

....

. . *

. .

11 12

12 12 13 13 13

17 17

tl:

26 26 27

Page 42

VI Field Stripping

1. Stripping the mechanism

2. Removing the cover

3. Separating the slide from the ‘breech block

4. Removing the firing pin

5. Removing the gas plug

6. Removing the piston

7. Assembly after field stripping

VII. Cleoning and Maintenance

I. General remarks

2. Maintenance of the rifle

Maintenance by the soldier

b) Inspection and Maintenance by the unit

armourer

3. Complete cleaning of barrel and gas cylinder

4. Preparation of rifle before firing

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. . . . . .

. . . .

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: : : 1 :

. ‘.

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