Upper Parts

BCM MCMR-13 M-LOK Compatible Modular Rail Featuring the same industry leading barrel nut and lock up design as originally introduced on BCM's evolutionary KMR handguard, the MCMR Series of handguards gives the shooter modularity in the M-LOK platform...

16" Barrel MIL-B-11595E CMV Chrome Lined 1/7 Twist Rate 1/2 X 28 Thread Pitch for Muzzle MilSpec Phosphate Coating Midlength Gas MPN SB51605-ML Length 16" Material MIL-B-11595E CMV Profile Government Finish MilSpec Phosphate...

These gas blocks contribute to an efficient and reliable gas system for your AR15 or AR 308 rifle build. Features: Features Aero Precision Logo Fits barrels with .625 Outer Diameter Constructed from 4140 hardened steel Nitride or phosphate coating Low...

Set it and forget it! Easily achieve perfect gas cycling with Odin Works' stainless steel tunable low profile gas block. Easily tune your rifle and make adjustments if you're changing ammo or throwing on a suppressor. Fits .750" diameter barrels...

This .223 Wylde chambered 16 inch barrel is machined from 416R Stainless Steel with a bead blasted finish. Ballistic Advantage's Premium Series Barrels feature a Nickel Boron Coated Extended M4 Feed Ramp Extension. Featuring functionally aggressive...

This .223 Wylde chambered 18 inch barrel is machined from 416R Stainless Steel with a bead blasted finish. Ballistic Advantage's Premium Series Barrels feature a Nickel Boron Coated Extended M4 Feed Ramp Extension. Featuring functionally aggressive...

Ballistic Advantage's 5.56 chambered 16 inch Government Profile Mid-Length Modern Series Barrel is machined from 4150 Chrome Moly Vanadium steel with a QPQ Corrosion Resistant Finish and QPQ coated M4 feed ramp extension.   The .750” barrels...

Our 5.56 chambered 16 inch Pencil Profile Midlength Modern Series Barrel is machined from 4150 Chrome Moly Vanadium steel with a QPQ Corrosion Resistant Finish and QPQ coated M4 feed ramp extension.   The .625” barrels are called this due to ...

These excellent quality gas blocks contribute to an efficient and reliable gas system for your AR15 or AR 308 rifle build. Features: Fits barrels with .750 Outer Diameter Constructed from 4140 hardened steel QPQ coating Low profile for easy fitment Set...

This .223 Wylde chambered 16 inch barrel is machined from 416 Stainless Steel with a QPQ finish. The Premium Black Series Barrels feature a Nickel Boron Coated Extended M4 Feed Ramp Extension.   SKU BABL223017PQ Length 16" Material 416R...

The AR15 Assembled Upper Receiver comes with the port door and forward assist already installed. Forged from 7075-T6 aluminum, this assembled upper is precision machined to mil- spec M16/M4 specifications and features M4 feedramps. Match this upper with...

Check out Hop's charging handle review on YouTube!   The Aero Precision BREACH is a rugged, ambidextrous, precision-manufactured charging handle for the AR15 platform. The BREACH's design utilizes a reinforced 7075-T6 aluminum bar that is up to the...