Manual

9. MISCELLANEOUS TECHNICAL NOTES

ArmaLite publishes a large number of Technical Notes that provide a huge amount of

information about our rifles and similar models. This information is available at no

charge in the Technical Notes section of the Library at ArmaLite.com. The following

extracts may be particularly relevant to your new rifle:

FIRING PIN RETAINING PIN: Do not pound or force the firing pin retaining pin into

position. To check for proper assembly of the AR-10 bolt carrier assembly, hold it with

the bolt up to verify that the firing pin doesn’t fall out. Push forward on the rear of the

firing pin and make sure that it is pushed back by the firing pin spring. Replace the

retaining pin if it is damaged.

MATCH TRIGGER ADJUSTMENTS: ArmaLite’s National Match trigger assembly

isn’t user adjustable. For safety reasons, it is intentionally built with a small amount of

creep in the second stage. As it breaks in with use (200 to 500 rounds) the creep tends to

decrease to an acceptable level. If excess creep remains, the trigger can be tuned by a

gunsmith using techniques similar to those used with the Ml/Ml4 trigger system.

ArmaLite technicians will fine-tune the triggers for a nominal shop fee, plus shipping.

REMOVING THE AR-10 and M15A4(T) TUBULAR HANDGUARD: It should

seldom be necessary to remove the tubular handguard of the (T). If it must be removed, a

vise with protected jaws is useful. Begin by holding the rifle by the fiberglass tube. Use a

strap wrench to grasp the lock ring at the front of the receiver. Loosen the ring by

rotating it counterclockwise (as viewed from the butt), and pull forward on the handguard

at the same time. Wrapping the lock ring with double-sided tape or duct tape, or

wiggling the handguard slightly as it loosens may help. Reverse the procedure to install.

WARNING: EXCESSIVE TIGHTENING OF THE LOCK RING WITH A STRAP

WRENCH CAN LOOSEN THE BARREL NUT OR DEFORM THE GAS TUBE.

APPEARANCE:

A small amount of powder residue normally seeps from under the front sight/gas block

and the recoil check. This is normal, but cannot be seen on phosphated barrels. It can be

seen on stainless steel barrels but presents no problem.

10. SERVICE

To obtain factory service on your AR-10 SuperSASS, or to purchase accessories, please