RED DOT SIGHT WITH BUILT
IN LASER
ITEM# DLB140R
INSTRUCTIONS
Red Dot Sight with Built in Laser
Item# DLB140R
PLEASE FOLLOW ALL OF THE DIRECTIONS IN THIS
MANUAL CAREFULLY.
CAUTION: ALWAYS PRACTICE SAFE FIREARMS
HANDLING!
BE SURE THAT THE FIREARM IS UNLOADED
BEFORE PERFORMING ANY OF THE FOLLOWING
PROCEDURES!
BE SURE THAT THE FIREARM IS POINTED IN A SAFE
DIRECTION AT ALL TIMES!
CAUTION
: AVOID DIRECT EYE EXPOSURE TO LASER
BEAM!
The DLB140R is a compact optical system packed with many features, and is also very
user friendly. The Quick Release Mount makes for easy mounting to nearly any Weaver
Style or Picatinny rail. This Red Dot/Laser combo is also backed by our Lifetime
Limited Warranty. We trust that you will receive many years of enjoyment and service
from your new Red Dot/Laser Sight.
For optimum performance, please follow all of the procedures in this owner’s
manual very carefully.
FEATURES:
Unlimited eye relief
Black anodized aluminum construction
Built in fully adjustable laser sight
Five brightness settings for Red Dot Sight
Ability to use Red Dot or Laser Individually, or both at the same time
Built in Quick Release Mount for use with most Weaver Style/Picatinny rails
LED (Light Emitting diode) 100% safe for the eyes
SPECIFICATIONS:
Length: 4.35”
Width: 3.45”
Height: 3”
Weight: 11.3 oz.
Mount Length: 3”
Objective Lens Diameter: 40mm
Magnification: 1X
Reticle: Red Dot
Dot Size: 3 MOA
Click Value: 1 MOA
Lens Coating: Ruby
Battery Type: CR2032
Laser Maximum Output Power: <5mW
Laser Wavelength: 635-655nm
MOUNTING PROCEDURE
Your sight’s mount is the link between your firearm and your optics. It is very important
to have a solid connection between the two in order to ensure proper function of all
components. NcSTAR has made installation fast and easy for the DLB140R by
incorporating the Quick Release System. You should place your firearm on a secure
platform, such as a gun vise, before performing any of the following procedures.
CAUTION
FAILURE TO DO SO CAN CAUSE DAMAGE TO YOUR SIGHT OR FIREARM
CAUTION
IN A SAFE DIRECTION. PRACTICE SAFE FIREARM HANDLING
PROCEDURES AT ALL TIMES.
: CAREFULLY FOLLOW ALL OF THE MOUNTING PROCEDURES.
: BE SURE THAT YOUR FIREARM IS UNLOADED AND POINTED
1. Begin by loosening the Mount Locking Nut (12) on the left side of the mount. To
perform this action, be sure that the Quick Release Lever (10) in the closed
position pointing towards the eyepiece. Using a wrench, turn the Mount Locking
Nut (12) counter-clockwise.
2. Next, turn the Quick Release Lever (10) to the open position pointing towards the
objective lens. Using a small flathead screwdriver, loosen the Mount Set Screw
(11) in order to fit the mounting unit to the rail on your firearm. Seat the sight on
top of your firearm’s rail with the objective lens pointing towards the muzzle.
Make sure that the recoil lug on the bottom of the Quick Release Mount (9) fits
securely into a slot on your firearm’s rail. Shoulder your firearm and adjust the
position of the sight until you have achieved the desired amount of eye relief.
Once you have your sight positioned properly, close the Quick Release Lever (10)
once more. Now, tighten the Mount Set Screw (11) until it is snug using a small
flat head screwdriver
3. At this point your sight and mount are in place, but they are not yet anchored to
the firearm solidly. Open the Quick Release Lever (10) and make small
adjustments to the Mount Set Screw (11). Open and close the Quick Release
Lever (10) checking the tightness of the mount. Perform this action as many
times as necessary until the mount is set firmly atop the rail. CAUTION: It does
not take a lot of force to get this unit mounted securely. Be careful to not over
tighten the Mount Set Screw (11) in order to avoid stripping it. Damage can also
occur to Quick Release Lever (10) if to much force is applied.
4. Once you have properly tightened the Mount Set Screw (11) and checked the
firmness of the mount connection by opening and closing the Quick Release Lever
(10). You can now tighten the Mount Locking Nut (12) to secure the adjustments
that you have made. For best results, tighten the Mount Locking Nut (12) with the
Quick Release Lever (10) in the closed position. Be sure not to over tighten the
Mount Locking Nut (12) in order to avoid stripping it. You have now successfully
mounted your sight. By simply opening the Quick Release Lever (10) and
pivoting the sight in the direction of the Mount Locking Nut (12), you can easily
remove the sight from your firearm. Make a reference as to the position of the
sight and mount in relation to the rail, so that eye relief settings may be retained
when the sight is put back on the firearm.
OPERATION
The Rheostat Knob (5) performs a number of functions. The Rheostat Knob (5) acts as an
on/off switch for both the Red Dot Sight and the Laser Sight. The number or letter that is
pointed directly up on the Rheostat Knob (5) is the one that is selected. The DLB140R
will turn off when the Rheostat Knob (5) is set to the number “0”. The numbers “1-5” are
different brightness settings for the red dot sight, in which “1” is the dimmest setting and
each setting afterwards becomes increasingly brighter. The letter “L” on the Rheostat
Knob (5) will turn on the laser sight only. The letter “B” will allow the user to turn on
both the laser sight and the red dot sight at the same time. After you are done using the
DLB140R, make sure that the Rheostat Knob is set to “0” in order to preserve battery
life.
ZEROING YOUR RED DOT SIGHT
ADJUSTING WINDAGE AND ELEVATION:
Your DLB140R is equipped with adjuster turrets for Windage and Elevation. The
Elevation Adjuster (8) is located on top of the Sight Tube (1). First remove the cap on the
Elevation Adjuster (8) and use a flat head screwdriver or thin coin to make adjustments.
Twisting the Elevation Adjuster (8) counter-clockwise move the red dot down, and
twisting the Elevation Adjuster (8) clockwise will move the dot up. Replace the cap once
you have made all necessary adjustments. The Windage Adjuster (7) is located on the
right side of the Sight Tube (1). First remove the cap on the Windage Adjuster (7) and
use a flat head screwdriver or thin coin to make adjustments. Twisting the Windage
Adjuster (7) counter-clockwise will move the red dot to the left, and twisting the
Windage Adjuster (7) clockwise will move the crosshairs to the right.
NOTE: Each click of adjustment changes the point of impact (where the bullet strikes the
target). This means that the makings on the Windage Adjuster (7) stating Æ L will
actually move the Red dot to the right. This also means that the markings on the
Elevation Adjuster (8) Æ UP will move the red dot down. Each click will move the red
dot by the amount shown on the chart below.
Windage/Elevation inches of movement per click
25 yards 50 yards 75 yards 100 yards 200 yards
1/4” 1/2” 3/4” 1” 2”
SIGHTING IN YOUR RED DOT SIGHT:
We recommend the use of a bore sighting device to save time and ammunition when
zeroing your sight. This device will help you get on paper much quicker. Follow all of
the instructions set by the manufacturer of your bore sighting device very carefully.
Once you have achieved a relative zero by way of bore sighting, it is still necessary to
shoot your firearm to ensure an accurate zero.
CAUTION
before shooting live ammunition. Failure to do so can result in damage to your firearm,
or injury to yourself and those around you.
With some firearms it may not be possible to use a bore sighting device. In this case it
will be necessary to use a more traditional method of zeroing.
: Always be sure to remove the bore sighting device before from your firearm
CAUTION: WHEN OPERATING ANY TYPE OF FIREARM ALWAYS USE
PROPER EYE AND EAR PROTECTION. BE SURE TO USE YOUR FIREARM
IN AN AREA THAT IS PERMISABLE UNDER LOCAL, STATE, AND
FEDERAL LAW.
1. From a steady rest position (such as a shooting bench) fire three to five rounds at
a target.
2. Observe where the bullets have struck the target and adjust windage and elevation
as necessary until your point of aim matches your point of impact.
3. Your firearm and sight are now zeroed. To change the zero distance of your
scope your can adjust the Elevation and Windage turrets as needed according to
the ballistics of the cartridge load you are using
ZEROING YOUR LASER SIGHT
ADJUSTING WINDAGE AND ELEVATION:
The built in Laser Sight on your DLB140R is adjustable for both windage and elevation.
The Laser Windage Adjuster (3) and Laser Elevation Adjuster (4) are both found on the
Laser Housing (2), and can be adjusted using the provided Allen wrench. To adjust the
elevation up, turn the Laser Elevation Adjuster (4) counter-clockwise, and to adjust the
elevation down turn it clockwise. To adjust the windage left, turn the Laser Windage
Adjuster (3) counter-clockwise, and to adjust the windage down turn it clockwise.
NOTE: For sighting in your Laser Sight, please use the instructions above titled
SIGHTING IN YOUR RED DOT SIGHT.
BATTERY INSTALLATION
Your DLB140R comes ready to use with a pre-installed battery. If the battery life expires
or your scope no longer illuminates, follow these simple instructions:
1. The Battery compartment is located within the Rheostat Knob (5).
2. On the top of the Rheostat Knob (5) you will notice a thin Battery Cap (6). To
remove this cap grasp it firmly with one hand and twist it counter-clockwise while
holding the Rheostat Knob (5) firmly in place with the other hand.
3. Remove the old battery and dispose of it properly. Replace it with a new 3 volt
Lithium Battery type CR2032 only. Twist the Battery Cap (6) back on to the
Rheostat Knob (5) and hand tighten. Avoid using tools (such as pliers) to perform
this procedure as this may cause damage to the unit.
CARE AND MAINTENANCE
Your DLB140R is a sealed unit, please do not attempt to take it apart or clean it
internally. The exposed optical lens surfaces will perform their best if they are routinely
cleaned with a lens brush and the lens cloth provided with your sight. For a deep
cleaning, you can also use high grade camera lens paper and camera lens cleaning
solutions. Never use any other type of materials or solvents other than those designed
specifically for optical lenses to avoid damaging your sight. Clean the outer portion of
the lens cavity first with cotton swabs, clearing as much debris and dust as possible.
Then, gently clean the lenses using a circular motion starting in the center and ending at
the edges. Do not rub the lenses continually, simply wipe in short circular patterns.
Maintain the exterior surfaces of the scope by removing dirt or sand by using a soft brush
or a soft, dry cloth. You can also use a silicone treated cloth to restore luster and protect
the scope against corrosion. Be careful not to touch any of the lenses with the silicone
cloth. When not in use, always store your sight in a dry place with lens covers on to
prevent scratches to the lenses.
If you are not sure about any of the procedures in this manual,
always seek the help of a qualified professional to avoid damage to
your scope and your firearm.
NcSTAR DLB140R
Red Dot Sight with Built in Laser
FOR TECHNICAL ASSISTANCE CALL:
1-866-NcSTAR-8
(1-866-627-8278)
WWW.NCSTAR.COM
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