Sons of Liberty Gun Works presents the SOLGW L89 BS V2 5.56 13.7" NOX BLK, a masterpiece of engineering and design. Featuring 7-sided L89 rails with Titanium barrel nuts and integral QD cups, this upper receiver is crafted for precision and reliabili…

Geissele Automatics presents the Super Duty MOD1, a complete upper receiver designed for the AR-15 platform. Engineered with precision, it features a 14.5" Cold Hammer Forged barrel, HuxWrx Flash Hider-QD muzzle device, and Geissele Airborne Charging…

Aero Precision's M4E1 300BLK Assemble Upper Gov 16''BBL Pistol-Length Thrd Blk is a testament to superior engineering and design. Featuring a 16-inch barrel with a 1:7 twist rate, this upper receiver is crafted from 4150 Chrome Moly Vanadium with a Q…

Aero Precision's M4E1 5.56 Assembled Upper Govt 18'' BBL Rifle Threaded Black showcases precision engineering and high-performance features. The 18-inch 5.56 NATO barrel and ATLAS R-ONE M-LOK handguard ensure exceptional accuracy and modularity, fini…

The CMMG Resolute MK4 5.56x45mm NATO is a testament to precision engineering and robust design. Featuring a 16.10" barrel and an Armor Black finish, this upper group is crafted for seamless integration with AR15 lower groups. Its M-LOK Free-Float...

The Aero Precision M4E1 5.56 ASSEM UPPER GOVT 11.5'' BBL CARBINE THREADED FDE is a testament to precision engineering and robust design. Featuring an anodized finish in Flat Dark Earth, this upper receiver is crafted for the AR-15 platform, offering …

The CMMG Resolute MK4 5.56x45mm NATO 16.10" Upper Group is designed with precision engineering and high-quality materials, offering a Midnight Bronze finish and M-LOK Free-Float Handguard for seamless integration with AR-platforms. Ideal for range ti…

The Aero Precision M4E1 5.56 Assembled Upper is a testament to precision engineering and quality craftsmanship. Featuring a 16" 5.56 NATO barrel with a mid-length gas system, this upper receiver is designed for optimal performance and reliability. Th…

The Brownells BRN-180SH 10'' Upper Receiver 300BLK is a testament to precision engineering and robust design. Crafted for suppressor optimization, it features a 10'' barrel with a 300 Blackout chambering, ensuring flexibility in ammunition choice. Th…

The Brownells BRN-180 Gen 2 Upper Receiver 223 Wylde 18.5'' Barrel Black is a testament to superior design and engineering. This complete upper receiver assembly features a robust short-stroke gas piston system, ensuring maximum reliability and minim…

The Brownells BRN-180 GEN 2 SPORT 16'' 223 Wylde Upper Receiver Assembly is a marvel of modern engineering, offering a robust design with a 16'' barrel made from 4150 carbon steel and a Nitride finish. This upper receiver is chambered in .223 Wylde,.…

Introducing the Brownells BRN-180S GEN 2 10.5'' 7.62X39MM Upper Receiver Assembly, a masterpiece of engineering and design. This complete upper receiver assembly features a robust anodized finish and a 10'' barrel with a 1-9.5 twist, ensuring reliabi…