Assembled Uppers

Rock River Arms RRAGE 3G A4 carbine upper comes chambered in 5.56mm NATO. This extruded aluminum upper receiver comes with a port door and no forward assist. Additionally, this upper is equipped with a RRA 15" RRAGE 3G M-Lok compatible handguard, a 16"...

The Luth-AR 16" Lightweight Complete Upper Barrel Assembly Starts with a 16"" 223 Remington Lightweight barrel made from 4140 Chrome Molly with a 1-9" twist mated to a A3 Flattop receiver which includes a bolt carrier, charging handle, forward assist and...

The Luth-AR 24" Fluted Bull Barrel Complete Upper Barrel Assembly Starts with a 24"" .223 caliber fluted bull barrel made from 416 SST with a 1-9" twist mated to a A3 Flattop receiver which includes a bolt carrier, charging handle, forward assist and...

Complete AR15 5.56 upper comes FULLY ASSEMBLED with a 5.56 NATO barrel, capable of shooting both .223 and 5.56. With an Anchor Harvey Upper and an XTS Hand Guard with full length top picatinny rail and M-LOK accessory mounting hardpoints...

The M5 .308 Assembled Upper Receiver comes with both the port door and forward assist hardware preinstalled. Forged from 7075-T6 aluminum, this assembled upper is precision machined to accept standard .308 components and is the perfect upper for your big...

This AR15 Complete Upper is the same upper receiver used in the AERO M16A4 Special Edition Complete Rifle and features a 20" Barrel chambered in 5.56NATO with Pinned FSB, A2 Handguard and A2 Detachable Carry Handle.Features :Upper: Standard M4 Upper...

Radical Firearms Complete Upper Assembly 300 Blackout 16" HBAR Contour Barrel 15" FCR, A2 Flash Hider Black Finish Includes Charging Handle And Bolt Carrier Group Product Type: Upper Finish/Color: Black Caliber: 300 Blackout Barrel Length 16, Caliber...

Built pistol-length upper receiver. Comes with everything including a 7.5″ M4 profile, parkerized barrel, 7″ m-lok rail, nitride bolt carrier group, standard mil-spec charging handle and birdcage flash hider. 7.5" M4 profile parkerized...

Complete upper receiver with colt carrier group and charging handle: M4 parkerized 4150 chrome vanadium barrel, chambered in 5.56 with a 1:8 twist Birdcage flash hider Carbine length gas system 15" m-lok handguard Flat-top mil-spec upper receiver with...

Built Anderson AR-15 upper. Comes with everything except a BCG and charging handle and ready to mate with a mil-spec lower receiver. 16" M4 contour parkerized barrel 1:8 twist Chambered in 5.56/.223 A2 Handguard High profile gas block A2 birdcage flash...

Complete built upper receiver: M4 parkerized 4150 chrome vanadium barrel, chambered in .223 wylde with a 1:7 twist Birdcage flash hider Carbine length gas system 15" m-lok handguard Flat-top mil-spec upper receiver with installed dust cover and forward...

Complete built upper receiver: 10.5" barrel chambered in 300BLK with a 1:8 twist Birdcage flash hider Pistol length gas system 10" m-lok handguard Flat-top mil-spec upper receiver with installed dust cover and forward assist No BCG or charging...

These complete pistol upper receivers are made from the highest quality USA produced components out there.  All of our complete uppers are fully assembled, test fired, and ready to pin to the lower receiver of your choice. 10.5" 4150CMV Barrel - 1:7...

Complete built upper receiver: 10.5" barrel chambered in 300BLK with a 1:8 twist Birdcage flash hider Pistol length gas system 10" m-lok handguard Flat-top mil-spec upper receiver with installed dust cover and forward assist No BCG or charging...

Complete built upper receiver: M4 parkerized, 4150 chrome vanadium lined barrel, chambered in .223 wylde with a 1:7 twist Birdcage flash hider Carbine length gas system 13.5" m-lok handguard Flat-top mil-spec Cerro upper receiver with installed dust...

Complete built upper receiver: 16"  4150 chrome vanadium lined barrel, chambered in .223 wylde with a 1:7 twist Low profile gas block Carbine length gas system 15" keymod handguard Flat-top mil-spec Cerro upper receiver with installed dust cover and...

Complete built upper receiver: Parkerized heavy 4150 chrome vanadium barrel, chambered in 7.62x39 with a 1:10 twist Birdcage flash hider Carbine length gas system 15" m-lok handguard Flat-top mil-spec upper receiver with installed dust cover and forward...

These complete pistol upper receivers are made from the highest quality USA produced components out there.  All of our complete uppers are fully assembled, test fired, and ready to pin to the lower receiver of your choice. 11.5" 4150CMV Barrel - 1:7...

16" 1:9 Parkerized M4 profile barrel Chambered in 5.56NATO Birdcage flash hider Pinned front sight with sling loop Clamshell carbine length handguard Carbine length gas system M4 flat top forged upper receiver with forward assist and dust cover...

Complete built upper receiver: Heavy 4150 chrome vanadium barrel, chambered in 5.56NATO with a 1:7 twist Birdcage flash hider Carbine length gas system 15" m-lok handguard Flat-top mil-spec upper receiver with installed dust cover and forward assist No...