Upper Receivers

HK MR556 A4 Complete Upper Receiver - 11" Match Grade Barrel The Heckler & Koch MR556 A4 Upper Receiver Kit is the ultimate upgrade for serious shooters seeking unmatched reliability, precision, and suppressor-ready versatility. Built on the...

PWS MK1 Mod 1-M .300 BLK Assembled Upper Receiver - 9.75" Barrel The Primary Weapons Systems MK109 MOD 1-M Upper is the embodiment of versatility, reliability, and tactical precision. Chambered in 300 BLK, this compact powerhouse is optimized for both...

M4L89 Upper 11.5" - 5.56 NATO Designed for shooters who demand uncompromising quality, the Sons of Liberty Gun Works Broadsword 89 V2 Upper Receiver delivers superior craftsmanship, enhanced modularity, and top-tier performance. Engineered with L89 rails...

SOLGW Scalper AR15 Receiver Set ODG Cerakote Finish The Sons of Liberty Gun Works stripped upper and lower receivers are made to the tightest tolerances while still being compatible with Mil-Spec parts and upper receivers. This ensures that there is...

SOLGW L89 Broadsword 13.7" 5.56 Upper Receiver The Sons of Liberty Gun Works (SOLGW) L89 Broadsword Upper is engineered for rigidity and precision, offering an enhanced platform for serious shooters. Featuring the Drivelock tensioning system, extended...

The Sons of Liberty Gun Works stripped upper and lower receivers are made to the tightest tolerances while still being compatible with Mil-Spec parts and upper receivers. This ensures that there is absolutely no wobble between receivers which can affect...

The Broadsword-89 Uppers and Drivelock (89 Series) rails provide arguably the most rigid interface on the market using traditional 2-piece AR15 construction.  The extended barrel nut, Drivelock tensioning crossbolts, and keyed upper receiver face...

LMT Defense - M4 Upper Receiver Assembly M16/M4 Style flat top upper receiver. Compatible with mil-spec barrel and barrel nut configurations. Comes complete with forward assist and port door assemblies.

Fully machined and finished, military style uppers ready for you to install your choice of barrel, carrier, bolt, forearm, and lower to build a custom AR-15. A2 carry handle style. Precision machined from a premium-grade Cerro aluminum forging and Tan...

The Triarc Systems TSR-15 SPR Upper seeks to redefine what a factory SPR barreled assembly can be; incorporating the most functional component choices possible, Triarc System has invigorated the tried and true concept of a 16" suppressed 5.56 rifle...

Barrel• 16” 5.56mm 416R Stainless with 1:7 twist• Individual serialized barrel for QC purposes• Hand polished Noveske Match Chamber• Mid length gas tube system• Noveske marked gas block: Low profile, .750” journal,...

Aero Precision AR15 Atlas R-One M-LOK Handguard ODG Anodized  The ATLAS R-ONE is the newest addition to the Aero Precision Handguard lineup. Machined from 6061-T6 Aluminum, the R-ONE line of handguards are designed with size and weight in mind,...