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,...

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...

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...

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,...

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...

The Colt CLT Upper 223REM 16.1 is engineered for precision and reliability, featuring a 16.1-inch barrel without handguard or sight. Designed for seamless integration, it includes a charging handle...

The Colt EPR Upper Kit 5.56 14.5" BLK is a testament to Colt's commitment to quality and precision. Engineered with high-quality components, this upper kit is designed for both new shooters and...

The Colt EPR Upper 5.56 16" MLOK BLK is a testament to Colt's dedication to quality and reliability. This upper receiver features a 16" chrome-lined barrel, M-LOK handguard, and is compatible with...

The Faxon Firearms URFAXFAC338 Upper Receiver is a testament to Faxon's commitment to quality and innovation. Crafted from 7075-T6 forged aluminum, this upper receiver is designed for the 338 ARC...

Knights Armament presents the SR-25 Precision Carbine Kit, engineered for superior performance with a 16" barrel and anodized finish. Ideal for precision shooting and range time, this upper receiver...

Midwest's AR-15 10.5'' Carbine Upper Receiver 1-7 M-LOK BLK 5.56MM showcases superior craftsmanship with its forged 7075 T6 aluminum upper and hard coat anodizing. The 10.5-inch melonite finish...

The Faxon Firearms ION ULTRALT 16" 556NATO UPPER is a marvel of engineering, designed for those who value both performance and lightweight handling. Featuring a 14.5" Pencil Barrel with an Integral...