Firearm Parts

(1) CMMG buffer retainer spring. Compatible with AR-15(Mk4) and LR-308(Mk3) buffer systems. (1) CMMG buffer retainer for AR-15(Mk4) and LR-308(Mk3)...

.750 Low profile gas block, includes installation screws. Made of 4141 Chrome Moly Steel. Use this assembly to customize your AR with a free float...

CMMG Forward Assist Kit is compatible with firearms that utilize Mil-Spec forward assists including AR-15, CMMG Mk3 and LR-308. Includes Forward As...

Gas tube for AR15 pistol length gas system. Includes installation roll pin. Made of stainless steel.

This pin set has slightly larger pins that makes take down faster and easier. The ends have a divot to allow that use of a bullet tip without the f...

CMMG's Mk3 Ejection Port Cover Kit includes an ejection port, rod and spring.

The CMMG ZEROED extended bolt catch features dual oversized extended paddles with a tactile machined surface. Steel construction with a durable fin...

CMMG Parts Kit, AR15, Bolt Rehab. kit includes firing pink, firing pin retain pin, three gas rings, extractor O-ring, extractor pin, extractor, bol...

This MK9 bolt assembly is made of 8620 steel and has a Phosphate finish.

This item is an ejection port cover for an AR-15. Includes ejection port, rod and spring.

Designing a trigger that effortlessly sparks the most stubborn primers often conjures up the image of a trigger with a heavy pull, long travel.

.936" Low profile gas block, includes installation screws. Made of 4142 chrome moly steel.

Gas tube for AR-15 carbine length gas system. Includes installation roll pin. Will not fit mid or rifle length barrels gas placement.

.625" Low profile gas block, includes installation screws. Made of 4140 moly chrome. Replace your A2 site with this gas block or add a free float r...

Specifically designed for use with 22AR Conversions to prevent spent casings from becoming lodged between the bolt and charging handle.

Gas tube for AR15 rifle length gas system. Includes installation roll pin. Made of stainpless steel.

Gas tube for AR15 midlength length gas system. Includes installation roll pin. Will not fit carbine or rifle length barrel gas system. Made of stai...

CMMG Parts Kit, AR15, Survival Kit. All Parts Meet or Exceed Mil-Spec. Kit includes all essential parts to keep bolt trigger and receivers together...

The CMMG ZEROED Trigger Guard is made from a premium polymer for maximum durability and no risk of corrosion or rusting. The extended rear eliminat...

The Dissent Side Charger forward, non-reciprocating side charger is preconfigured for left handed shooters to be able to quickly charge their DISSE...

This standard AR15 charging handle comes with latch installed and is made of aluminum.

The perfect trigger for your next build. Reliable single-stage design based on the original M16 trigger, modified for semi-auto use. Mil-Spec Trigg...