Complete Upper Receivers

High quality components and precise manufacturing makes Colt Products ideal for both new shooters and experienced gun owners. The durability, reliability and excellent build quality will provide years of service you can count on.MANUFACTURER: Colt's...

The WORKHORSE complete upper receiver is purpose-built around the forged WORKHORSE 7075-T6 aircraft-grade aluminum receiver and free-float rail handguard with M-LOK attachment point at 3, 6, and 9 o'clock positions. At 12 o'clock is a full-length...

The WORKHORSE complete upper receiver is purpose-built around the forged WORKHORSE 7075-T6 aircraft-grade aluminum receiver and free-float rail handguard with M-LOK attachment point at 3, 6, and 9 o'clock positions. At 12 o'clock is a full-length...

The heart of the BAD Authority Elite upper receiver is the billet BAD556 7075-T6 aircraft grade aluminum receiver with integral ambidextrous controls and free-float rail handguard with M-LOK attachment points at 3, 6, and 9 o'clock positions. At 12...

Established in 2009, Battle Arms Development, Inc. (B.A.D. Inc.) stands as a distinguished force in the realm of small arms innovation. Nestled in the heart of Henderson, Nevada, their company is driven by a relentless commitment to pushing the...

Angstadt Arms complete upper receiver pistol assembly is ready to run out of the box with any 9mm AR-15 lower receiver. Featuring the same high quality parts that go into their UDP-9 pistol, this completed upper receiver is compatible with both GLOCK and...

Angstadt Arms complete upper receiver assembly is ready to run out of the box with a sound suppressor! This pistol upper features a 9mm 3-lug muzzle brake, Blastwave blast shield and Radian Weapons Ambidextrous charging handle. Compatible with any 9mm...

Rock River Arms A4 Carbine upper comes chambered in .350 Legend with a 16" chrome moly 1/16 twist barrel. Additionally this upper includes a RRA 13" M-Lok compatible lightweight free float rail and a RRA Operator Brake (1/2-36 thread). This is a complete...

Rock River Arms A4 Coyote Carbine upper comes chambered in .300 AAC / Blackout with a 16" chrome moly 1/8twist barrel. Additionally this upper includes a RRA 12.5" M-Lok compatible lightweight free float rail and a Smith Vortex flash hider (5/8-24...

The RISE 6mm ARC AR-15 Upper Receivers features an exceptionally accurate 18-inch 416R stainless steel threaded barrel.MANUFACTURER: Rise ArmamentMPN: RA-6ARC-CU-BLK-18MODEL: 0Type of Barrel: 01:07:00Barrel Length: 18"Description: M-LOKFinish:...

The Radical Firearms 6.5 Grendel upper is perfect for the novice or advanced shooter wanting to finish out that build and hit the range. No matter what your style of shooting is, Radical Firearms has you covered.MANUFACTURER: Radical FirearmsMPN:...

The Radical Firearms 5.56mm upper is a complete MIL-STD upper ready to drop on any MIL-STD lower Receiver. Perfect for the novice or advanced shooter wanting to finish out that build and hit the range. No matter what your style of shooting is, Radical...