Upper Parts

***Cosmetic Blemish*** These are the same spec as our PREMIUM BCGS. They will function properly 100% of the time but may exhibit cosmetic irregularities.    The Ultimate Hard-Use 5.56 Bolt Carrier...

Dead Air's flash hider has a unique design featuring mass shifted equal length tines. The end result is a flash hider that does not “ping.” It is compatible with DA's Sandman Series and KeyMo...

B&T's Assault Closed Tine Flash Hider / Compensator is constructed with heat-treated stainless-steel. Weighing in at only 3.3 oz, this flash hider/compensator combo is compatible with Surefire and...

Inspired by the Navy Mk18 "Mod 3" if reverted to quad, we're calling this the MkL18 Mod A. This hybrid Colt/LaRue Tactical AR15 upper receiver group features a Colt FBI HRT (Hostage Rescue Team) 11...

This AR15 Upper features a 14.5" 5.56 Carbine-Length Barrel w/ Pinned FSB, Carbine Handguard  Upper Features: No Cage Code as of 2024 Upper: Standard AR15 Upper Receiver Barrel: 14.5" 5.56 CMV...

The Forward Controls Design GBF Low Profile AR-15 Gas Block is machined to provide durability and precision on barrels with a .625" gas seat diameter. Made from heat-treated 4140 bar stock and coated...

The Forward Controls Design GBF Low Profile AR-15 Gas Block is machined to provide durability and precision on barrels with a .750" gas seat diameter. Made from heat-treated 4140 bar stock and coated...

Microbest is one of the finest manufacturers of mil-spec bolt carrier groups for the military and small arms manufacturers. We recommend degreasing and lubricating before installation. Ships in OEM...

Fine-tune your AR-15 gas system with the Odin Works Adjustable Gas Block. The Inconel adjustment screw provides 20 clicks of adjustment locked in place by a ball detent, allowing you to dial in gas...

The A2 bird cage flash suppressor is the standard muzzle device of the U.S. Armed Forces and is found on most M4/M16 rifles as well as many AR-15 rifles. 1/2X28 thread pitch Includes Mil-spec crush...

Luth-AR factory replacement stainless steel gas tubes. Available in pistol-length, carbine-length, mid-length and rifle length. Fits standard AR-15 rifles.

Limited Edition You may already be familiar with our original Super-Stakes in Chrome. These are based on our Phosphate+ except instead of the factory staking that most of our BCGs receive, we asked...

Introducing the 1K3 Bolt Carrier Group. Guaranteed for Life. M16 profile Bolt Carrier Groups, these are hand inspected and given a heavy duty custom stake before being laser branded with the 1K3...

These melonite (black) gas tubes are a key part of an efficient and reliable gas system for your AR15 or AR 308 rifle build. They offer increased heat and corrosion resistance compared to...

These melonite (black) gas tubes are a key part of an efficient and reliable gas system for your AR15 or AR 308 rifle build. They offer increased heat and corrosion resistance compared to...

The Geissele Super Duty Upper (Stripped) features the quality and worksmanship you've come to expect from the Geissele name.   At the heart of this stripped upper is a Super Duty upper receiver that...

Designed to fit AR-15 and M16 barrels, the BCM low-profile gas block is machined from high quality steel to Mil-Spec tolerances. Gas block includes set screws for mounting and a phosphate finish for...

This genuine, Colt factory part is the one used by our GI’s on the M-4 carbine to allow attachment of M203 grenade launchers or forward mounted lights and lasers. Steel, two-piece unit clamps...

The Geissele Super Duty Upper (Stripped) features the quality and worksmanship you've come to expect from the Geissele name.   At the heart of this stripped upper is a Super Duty upper receiver that...

14.7" CHF Government Carbine, 5.56x45mm 1:7 RH Twist (NFA OR PISTOL)   With its more than 100-year legacy of exceptional barrel manufacturing, FNH USA has long perfected the cold hammer forging...