Upper Parts

We're big fans of the M4 platform and that includes the close ancestors to the M4 like the CAR-15/723 and its shorter barrel brother 733, another variant that makes frequent cameos in popular culture. This upper features a Colt 11.5" M4 Chrome-Lined 5.56...

We're big fans of the M4 platform and that includes the close ancestors to the M4 like the CAR-15/723, one of our favorite variants that makes frequent cameos in popular culture. This upper features an LMT 14.5" M4 Chrome-Lined 5.56 Carbine-Length Barrel...

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 non-finished gas tubes. Features: Melonite Gas Tube for AR15...

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 non-finished gas tubes. Features: Melonite Gas Tube for AR15...

***Does Not Include Carrier*** Mil-Spec Bolt - CHROME C158 Steel Shot Peened High Pressure Tested (HPT)  Magnetic Particle Inspected (MPI) *Ejector is either Chrome or Phosphate Chrome Silicon Ejector Spring by Sprinco Mil Spec Extractor -...

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 mates to a MK16 Super Modular rail via a center...

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 corrosion and wear resistance.  .750" inside...

  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 directly around the barrel between the barrel...

The SureFire SFA2-556-1/2-28 is a closed-tine adapter specifically designed and engineered for compatibility with SureFire Blank Firing Adapters or any Mil-Spec BFA used in training evolutions that require a blank firing adapter.   Like every...

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 process to ensure accuracy and durability. These...

We're big fans of the M4 platform and that includes the close ancestors to the M4 like the 727 and XM4. This upper features a 14.5" Chrome-Lined 5.56 Carbine-Length Barrel w/ Pinned FSB and Carbine Handguards. Choose COLT SOCOM or LMT M4 barrel. Upper...

LT Low-profile gas blocks are necessary when extending your free-float handguard past your barrels gas port. LT Gas Blocks are lightweight, strong and small enough to use with almost any handguard. They mount using three set screws located at the bottom,...