Introducing the Radian Weapons Complete Upper 9" .300 Blackout FDE, a masterpiece of engineering and design. This upper receiver is crafted with precision, featuring a 9" barrel and an 8" M-LOK handguard, ensuring optimal performance and ease of use …

Daniel Defense's DDM4 300S Upper Receiver Group is a testament to superior engineering and design. Featuring a 10.3-inch cold hammer forged barrel with chrome lining and a pistol length gas system, this upper receiver ensures optimal performance and.…

The Sons Of Liberty Gun Work M4-89 11.5" 5.56 URG is a testament to precision engineering and robust design. Featuring a combat-grade barrel and a QPQ corrosion-resistant finish, this upper receiver group is crafted for reliability and performance. I…

The Anderson AM-15 Upper Receiver Sub Assembly is a testament to precision engineering and robust design. Crafted from 7075 T6 aluminum forging, it ensures strength and lightweight durability. The assembly includes a dust cover and forward assist,...

The Anderson AM-15 Upper Receiver Assembly showcases Anderson's commitment to quality and precision engineering. Designed for seamless integration with AR-15 platforms, this upper receiver is crafted from 7075 T6 aluminum forging, ensuring durability…

Heckler & Koch presents the MR556 A4 Upper Receiver Kit, a pinnacle of engineering excellence. This kit features a 16.5" cold hammer-forged barrel, an adjustable gas block, and an M-LOK handguard, ensuring superior performance and reliability. Design…

The Daniel Defense MK18 Upper Receiver Group is a testament to superior design and engineering, featuring a 10.3" Cold Hammer Forged Barrel and the renowned RIS II Rail System. This complete upper receiver is crafted for precision and reliability, ma…

The Daniel Defense DDMK18 Upper Receiver is a top-tier option designed for optimal performance and reliability. Featuring a 10.3" Cold Hammer Forged Barrel and the MK18 Rail Interface System (RIS II), it’s the same upper used by USSOCOM for CQB...

The Sons of Liberty Gun Works SOLGW M4L89UPPER13.7556XL L89 Upper 556 13.7 V2 showcases exceptional engineering and design quality. This complete upper receiver features a 13.7" pinned (16.5" OAL) button-rifled barrel, HUXWRX flash hider, and a low..…

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…