ASSEMBLY MANUAL

MODULAR RIFLESYSTEM

MOD Xgen iii

TM

A B ARMS TM

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MODULAR RIFLESYSTEM

gen iiiTMMOD X

Children are attracted to and can operate �rearms that cause severe injury or death. Prevent child access by always keeping guns locked away and unloaded when not in use. If you keep a loaded �rearm where a child obtains and improperly uses it, you may be �ned or sent to prison.

General Safety Information

Product Speci�c Safety Information

Four basic principles of �rearm handling:1) Treat every �rearm as if it is loaded.2) Never point a �rearm at anything you are not willing to destroy.3) Keep your �nger o� the trigger until you are on target and ready to �re.4) Always be sure of your target and what is beyond it.

DO NOT OPERATE ANY FIREARMS WHILE UNDER THE INFLUENCE OF ALCOHOL OR DRUGS.

You are responsible for the safe use and operation of all �rearms in your possession or that you come in contact with. Always check to make sure the �rearm is unloaded. Check the chamber, receiver, and magazine to be certain they do not contain any ammunition. Never assume the �rearms is unloaded. Always check for yourself.

Ensure that your �rearm is in a safe overall working condition prior to performing this upgrade.

Keep all small parts out of the reach of children. They are a choking hazard.

Be sure that all parts are connected and all fasteners tightened correctly before �ring your ri�e.

For questions regarding our terms and conditions or our return policy please email us at customerservice@abarms.com

Use of a �rearm under any circumstance may be dangerous. SERIOUS INJURY OR EVEN DEATH may result without proper training in the safe handling of �rearms. Proper training should be obtained from an accredited �rearms safety program conducted by competent, quali�ed instructors in the military, police academies or National Ri�e Association a�liated instruction programs.

Never attempt to modify the main frame of the MOD X™ chassis system or A B Arms™ Urban Sniper Stock™ in any way. Doing so may cause the system to become weaker in certain areas which can lead to unsafe shooting conditions.

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Visit our website to �nd accessories to build up your arsenal.

Magazines KeyMod Rail Sections

A B Arms™ USS™ Cheek Riser Assembly A B Arms™ UAS™

KeyMod Bipod Mounts

KeyMod QD Sling Mounts

Adjustable Bu�er TubeMil-SpecA B Arms™ V Grip™ A B Arms™ P Grip™

parts1A

1B

2 3

A B Arms™ Urban Sniper Stock™Buffer tube with castle nut

Hand Guard

Receiver: Side Folder Variant

20 MOA Scope MountA B Arms™ P Grip™

1B

Receiver: Fixed Variant- OR -

1A

2

3

4

5

6

5

4

6

side folder operation

OPENED

TO OPEN

STOCK

FOLDED

TO FOLD

STOCK

1 2 3

2 31

Your MOD X™ GEN III upgraded rifle is now ready for you to mount your optics and head to the range.WARNING: You may be interrupted multiple times at the range by people wanting to touch your

MOD X™. Don’t be tempted to give in to these folks because it may take up your entire range day.

Screw A1/4”-28

3/16” Hex

Screw B#10-24

5/32” Hex

Torque wrenches work best for assembling this product. In leu of a torque wrench, we encourage hand tightening by using hex keys because they provide less available torque and can prevent stripping of screw holes. To comply with warranty, proper torque loads need to be applied while installing parts.

Screw C#6-48

T15 TORX

hardware

Lock Washer1/4”

Set Screw F1/4”-201/8” Hex

Screw D#10-32

1/8” Hex

Set Screw E#6-32

1/16” Hex

Fasten the A B Arms™ USS™ to the buffer tube using one set screw (F) and a 1/8” hex head making sure to guide screw into one of the preset holes in buffer tube.

9

10

Fasten the receiver to the barreled action using two screws (A) and a 3/16” hex head. Use a maximum torque of 65 in-lb.

1

2

Place your barreled action into the receiver portion.

Hand tighten set screw (E) in the receiver using a 1/16” hex head. Make sure the screw ends up inside the buffer tube notch. This will prevent tube rotation. Then tighten the castle nut using castle nut wrench.

7

8

Remove the P Grip™ hatch and install the P Grip™ on to the receiver using one screw (A) and the lock washer with a 3/16” hex head. Use a maximum torque of 55 in-lb.

Fasten the receiver to the hand guard using two screws (B) and a 5/32” hex head. Use a maximum torque of 55 in-lb. Fasten the hand guard to the scope mount using one screw (D) and a 1/8” hex head. Use a maximum torque of 30 in-lb.

5

6

Place the scope mount on the action. Fasten the scope mount to the action using four screws (C) and a T15 Torx head. Use a maximum torque of 30 in-lb.

Slide the hand guard portion over the barrel. Make sure to line up the oval hand guard locator with the oval indentation on receiver.

3

4

Hand tighten the buffer tube to the receiver until it stops. Then slowly back out the tube in the reverse direction until the tube notch is lined up with the hole on underside of receiver.

Tube notchScrew hole