Mossberg 935 Magnu User Manual

OWNER’S MANUAL

930TMAND 935 AUTOLOADING SHOTGUN

IMPORTANT “SAFETY WARNINGS” — NOTE THE SYMBOL

THESE SAFETY WARNINGS ARE FOR YOUR PROTECTION AS WELL AS THE SAFETY OF OTHERS. DISREGARDING INFORMATION IN THIS MANUAL MAY RESULT IN SERIOUS INJURY OR DEATH.

Be certain this owner’s manual is available for reference and is kept with this firearm if transferred to another party. If the manual is lost or misplaced, contact the Product Service Center for a free replacement copy.

After performing any work on your firearm such as cleaning, adjustments, disassembly, or installation of any accessory, the firearm should be re-checked for proper functioning before firing live ammunition.

Firearms are complex mechanisms. Any modification, alteration, or improper fitting of parts may result in a dangerous malfunction, damage to the firearm and injury to the shooter and/or other persons. The firearm’s owner must accept full responsibility for the correct reassembly and functioning of the firearm after any disassembly or replacement of parts.

If you do not understand any of the material in this manual or have any questions, contact the Product Service Center or a qualified gunsmith.

Do not attempt to load, handle or use the firearm until you read and understand the information contained in its owner’s manual. Before handling your firearm, you should learn how it operates and how to maintain it. This includes knowing its basic parts, how the manual safety and other safety features operate, how to safely open and close the action, and how to safely load and unload ammunition from the firearm. Improper use and handling is dangerous and could cause serious injury or death to you or those around you. All users of the firearm must become thoroughly familiar with the instructions in this manual.

O.F. MOSSBERG & SONS, INC.

P.O. BOX 497 • 7 GRASSO AVENUE, NORTH HAVEN, CT 06473

Safety and safe firearms handling is everyone’s responsibility.

PHONE (800) 363-3555

www.mossberg.com

As the owner of a firearm, you must undertake the full-time responsibility of safe firearms handling for your own safety and the safety of those around you:

• Keep all firearms and ammunition out of the reach of children.

• Store your firearms and ammunition separately.

• Never store a loaded firearm.

• Never leave a loaded firearm unattended.

• Never transport a loaded firearm in a vehicle.

• Unload your firearm when you have stopped shooting and when you have to climb a tree, fence, cross a slippery surface or have to transport it in a vehicle.

• Do not load your firearm before you are in a place where it is safe to shoot, and keep your finger off the trigger until you are on target and have decided to fire.

• Never shoot at water, rocks or any hard surfaces. Shots may glance off such surfaces and cause injuries.

• Do not use alcohol or drugs before or while handling firearms.

• Do not touch the trigger while the safety button is being engaged or disengaged.

Always point the muzzle of your firearm in a safe direction, regardless of whether the firearm is loaded or unloaded. You should become thoroughly familiar with the function and operation of this firearm and the instructions supplied with it.

Always treat every firearm as if it were loaded. Give your firearm to someone with the action open (bolt fully rearward), and the safety button pushed to the fully rearward “ON” (SAFE) position, after you verify the firearm is unloaded. Insist on the same procedure when receiving a firearm from someone else. Learn the location of all the safety features of your firearm and how they operate.

Wear eye and ear protection when shooting. Shooting without proper ear protection can cause hearing damage. The use of eye protection during any type of shooting is important to protect your vision.

When using a firearm with mounted optics, maintain an adequate distance between the rear of the scope and your face at all times. Be certain the scope installation does not interfere with access to, or the proper functioning of the safety button.

WE SPECIFICALLY DISCLAIM ANY RESPONSIBILITY FOR DAMAGE OR INJURY WHATSOEVER OCCURRING IN CONNECTION WITH, OR AS A RESULT OF, THE USE OF FAULTY, OR NON-SAAMI STANDARD OR “REMANUFACTURED,” OR HAND-LOADED (RELOADED) AMMUNITION. ADDITIONALLY, WE DISCLAIM ANY RESPONSIBILITY FOR DAMAGE OR INJURY WHICH RESULTS FROM ANY MODIFICATIONS OR CHANGES THAT ARE NOT A PART OF THE FIREARM AS DELIVERED FROM THE FACTORY.

Learn to clean your firearm thoroughly and make certain no oil, grease, or other materials are blocking the barrel. Obstructions of any kind can cause damage to the firearm, resulting in personal injury.

Practice proper firearm maintenance and safety. Make sure all exposed metal surfaces are coated with a thin film of oil, especially after exposure to damp weather. (See proper section of this manual for cleaning instructions.) Do not plug barrel or store in a fabric-lined case which will absorb lubricants from the firearm. Before using after storage, follow complete instructions stated in this manual for refamiliarization with the firearm. A thorough inspection and function test should be performed before going into the field. Have your firearm periodically checked by a qualified gunsmith.

PART NO. 16888 Rev. D

A note about the warnings and information contained in this Manual:

We strongly suggest that you check with your local licensed retailer or state police for additional information concerning firearms ownership, or hunting or target shooting rules that may be required by local law or regulation. Since such rules and regulations are subject to change, local authorities are in the best position to advise you on such matters.

TABLE OF CONTENTS

Page

The Mechanical Safety ............................................................................... 2

The Cocking Indicator ................................................................................ 3

Unpacking Your Firearm ............................................................................. 4

To Lock Action Open and Remove Chamber Plug .................................... 4

Closing the Action ...................................................................................... 5

Magazine Plug ............................................................................................ 5-6

Loading the Firearm .................................................................................... 6-7

Loading the Magazine ................................................................................ 8

Firing the Firearm ........................................................................................ 9

Unloading the Firearm ................................................................................ 10

Disassembly ................................................................................................ 11-13

Cleaning and Lubrication ............................................................................ 14-15

Action Re-Assembly ................................................................................... 15-17

Function Testing ......................................................................................... 18

Sight Adjustments ...................................................................................... 18-19

Stock Spacer System ................................................................................. 20

Choke Tubes ............................................................................................... 21-22

Service Instructions .................................................................................... 23

Warranty Information .................................................................................. 24

Notes .......................................................................................................... 25-27

Parts List ..................................................................................................... 28

Exploded View ............................................................................................ 29

The Basic Rules of Safe Firearms Handling ....................................... Back Cover

OPERATING INSTRUCTIONS

Read and understand this entire manual and its safety warnings before handling this firearm.

MECHANICAL SAFETY

The safety button is located on the top rear portion of the receiver (Figure 1) and must be manually moved to the desired position by the shooter.

To put the safety in the “ON” (SAFE) position, the safety button must be moved fully rearward into the safety detent. The button will now be over the red dot.

The red dot is a training aid used only to show the direction of the “ON” (SAFE) position and should not be used as an indicator that the safety is “ON” or “OFF.” Moving the safety button forward toward the muzzle of the firearm will put the safety in the “OFF” (FIRE) position.

Remember, a firearm’s manual safety is a mechanical device which can never replace safe firearm handling practices.

Never rely on any mechanical mechanism or safety device to prevent the dangers of careless handling or pointing a firearm in an unsafe direction.

as shown

Figure 1

COCKING INDICATOR

Your firearm is equipped with a cocking indicator located in the forward section of the trigger guard (Figure 2). The cocking indicator allows the shooter to know whether or not the firearm is cocked. When the firearm is cocked (ready to fire), the indicator will protrude into the trigger guard. The cocking indicator is an automatic device; it cannot be manually activated or deactivated.

The cocking indicator is not a safety and does not indicate whether or not a cartridge is in the chamber. You must visually and physically inspect the chamber to determine if the firearm is loaded.

Remember, the firearm’s cocking indicator is a mechanical device which can never replace safe firearm handling practices.

Never rely on any mechanical mechanism or safety device to prevent the dangers of careless handling or pointing a firearm in an unsafe direction.

TRIGGER GUARD

Figure 2

COCKING INDICATOR

UNPACKING YOUR FIREARM

Your firearm is shipped from the factory fully assembled. Before using this firearm, gently tug outward on the operating handle to ensure it is securely engaged in the bolt. If the operating handle should come out of the bolt, please refer to the Action Reassembly instructions. The operating handle must be properly installed prior to use. A bright orange chamber plug has been inserted in the chamber (Figure

3) as an aide to ensure that the chamber is unloaded. You must remove this plug prior to use.

CHAMBER PLUG

Figure 3

TO LOCK THE ACTION OPEN AND REMOVE THE CHAMBER PLUG

1. With the safety button fully rearward in the “ON” (SAFE) position, and the

muzzle pointed in a safe direction, hold the firearm in your left hand by the forearm, and grasp the operating handle with your right hand. (Figure 4).

2. Pull the operating handle fully rearward in one quick motion. When released,

the action will move slightly forward (towards the muzzle) and lock in the open position.

3. Remove the chamber plug from the chamber. It is recommended that the chamber

plug be reinstalled when the firearm is not in use as an added measure of safety to indicate the chamber is unloaded.

Check to be sure the firearm is unloaded by visually and physically checking the chamber, elevator, and magazine tube. Make certain that the safety button is fully rearward in the “ON” (SAFE) position (Figure 1).

Figure 4

The bolt is always under spring pressure. When the bolt release is pushed with the bolt locked rearward, the bolt is driven forward toward the muzzle with considerable force. Do not have fingers or other objects in the ejection port or near the operating handle.

Visually and physically inspect the chamber and bore of the barrel to make certain it is free of any obstructions, excessive oil or grease. If you are unable to remove any obstruction, bring the firearm to a qualified gunsmith or send it to a factory authorized Product Service Center. Obstructions of any kind can result in damage to the firearm and/or serious personal injury to you or those around you when the firearm is fired.

TO CLOSE THE ACTION

Keep fingers clear of the operating handle and the ejection port when closing the action. (Figure 4)

With the safety button fully rearward in the “ON” (SAFE) position, and the muzzle pointed in a safe direction, press the bolt release until the action releases (Figure 4).

TO REMOVE THE MAGAZINE PLUG (NON SPX MODELS)

Be sure the firearm is unloaded by visually and physically checking the chamber, elevator, and magazine tube. Make certain that the safety button is fully rearward in the “ON” (SAFE) position before performing any assembly or disassembly procedure.

Unscrew and remove the magazine cap (Figure 9). Grasp the barrel and forearm to prevent them from sliding forward. Do not place your hand over the muzzle at any time. Point the muzzle downward and shake the firearm in an up and down motion until the wooden dowel falls through the opening at the end of the magazine tube.

TO INSTALL THE MAGAZINE PLUG

Unscrew and remove the magazine cap (Figure 9), insert either end of the wooden dowel at the end of the magazine tube, inside the coils of the magazine spring. Replace the magazine cap finger tight only. Do not use pliers or a wrench to tighten the magazine cap.

MAGAZINE CAPACITY

930

Models: Five (5) 2 3/4" or 3" cartridges (four (4) in the magazine tube, plus

(Excluding SPX)

one (1) in the chamber).

930 SPX: Eight (8) 2 3/4" cartridges (seven (7) in the magazine tube, plus

one (1) in the chamber), or seven (7) 3" cartridges (six (6) in the magazine tube plus one (1) in the chamber).

Models: Five (5) 2 3/4" or 3" cartridges (four (4) in the magazine tube, plus

935

one (1) in the chamber), or four (4) 3 1/2" cartridges (three (3) in the magazine tube, plus one (1) in the chamber).

MAGAZINE PLUG – You are responsible for complying with all laws regarding magazine capacity. To comply with U.S. migratory bird laws, your firearm was shipped with a wooden dowel inserted into the magazine tube which limits magazine capacity to two (2) shells. (930 SPX models do not

include the

wooden dowel)

TO LOAD THE FIREARM

Models: are designed to fire 12 gauge 2 3/4" factory loaded cartridges and

930

3" factory loaded magnum cartridges.

935

Models: are designed to fire 12 gauge 2 3/4" (1 1/4 oz Heavy Field minimum),

3" or 3 1/2" factory loaded cartridges only. Do not fire slugs of any type (single projectile ammunition) through the overbored 935 designed to shoot lead or steel pellet shot only. Use only 935

Accu-Mag barrel. This barrel is

barrels designated

specifically for slug shooting.

Fully rifled barrels deliver best accuracy with sabot style slugs. “Rifled” slugs and shot are not recommended for use in rifled barrels.

Before loading, move the safety button fully rearward to the “ON” (SAFE) position (Figure 1).

During loading, never allow fingers or any other objects to contact the trigger. Keep the muzzle pointed in a safe direction at all times.

Do not load the firearm until ready for use! Unload the firearm when shooting has been completed! The safety button should always be fully rearward in the “ON” (SAFE) position whether or not the firearm is loaded.

Inspect the chamber and bore of the barrel for any obstruction, excessive oil or grease. (The chamber is the rear portion of the barrel where the cartridge will be inserted.) Obstructions of any kind can result in damage to the firearm and/or serious personal injury to you or those around you when the firearm is fired.

Check to be certain that the ammunition selected is the same type of cartridge as designated on the barrel of the firearm. Failure to use correct ammunition can cause damage to your firearm and could cause serious injury or death to you or those around you.

1. Open the action by pulling the operating handle completely rearward until it

locks in the open position. (Figure 5)

2. Load the first cartridge through the ejection port located on the right side of

the receiver. The cartridge can be inserted directly into the chamber or placed on top of the elevator (Figure 5).

Because the bolt is under considerable spring pressure, keep fingers clear of the operating handle and the ejection port when closing the action.

3. With the safety button fully rearward in the “ON” (SAFE) position, and the muz-

zle pointed in a safe direction, press the bolt release until the action releases (Figure 5).

4. The action will close under spring force, chambering a live cartridge. Be sure

to keep fingers and other objects out of the ejection port!

The firearm in now loaded and will fire if the safety is moved to the "OFF" (FIRE) position and the trigger is pulled! The safety button (Figure 1) should be kept fully rearward in the “ON” (SAFE) position until you are on target and have actually decided to fire. Keep the muzzle pointed in a safe direction at all times, and your fingers and any other objects away from the trigger area.

Figure 5

TO LOAD THE MAGAZINE

With the safety button fully rearward in the “ON” (SAFE) position, and the bolt in the forward (closed) position, hold the firearm with the bottom of the receiver facing upward. Keep the muzzle pointed in a

safe direction at all times.

1. Carefully push the cartridge into the loading port, depressing the elevator

(Figure 6). This will expose the magazine tube opening within the receiver.

Figure 6

2. Continue carefully pushing the cartridge into the magazine tube until the rim of

the cartridge is past the shell stop (Figure 7). The shell stop will “snap” over the rim of the cartridge. Repeat this sequence to load each additional cartridge.

If the cartridge is not pushed all the way into the magazine tube, it will pop back out on the opposite side of the elevator. If this should occur, while keeping the muzzle pointed in a safe direction, simply open the action by pulling the operating handle rearward, ejecting the cartridge from the chamber. Releasing the operating handle will allow the action to close, automatically feeding the “misloaded” cartridge into the chamber.

The firearm is now loaded and will fire if the safety is moved to the “OFF” (FIRE) position and the trigger is pulled.

SHELL STOP

CARTRIDGE RIM

Figure 7

+ 22 hidden pages

Mossberg 935 Magnu User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual