Upper Receivers

2A Armament

2A Armament BALIOS-LITE Gen 2 Upper 556NATO Black Billet 7075-T6 Aluminum AR Rifles Flat Top 2A-MCBU-4

Black Rain Ordnance

Black Rain Ordnance 458 SOCOM Upper 458 Socom 16" Black 1:14 Forged BRO-SPEC15-CU-458S

Black Rain Ordnance

Black Rain Ordnance Milled Upper 223 Remington 556NATO Black Flat Top BRO-MUR-2

Bravo Company

Bravo Company Upper Black 1913 Rail for Mounting Optics and Accessories Mil-Spec AR Rifles Flat Top BCM4-UR-M4

Colt's Manufacturing

Colt's Manufacturing Upper 223 Remington 556NATO 11.5" Black Lightweight AR Rifles Back Up Iron Sights LE6943CK

Colt's Manufacturing

Colt's Manufacturing Upper 223 Remington 556NATO 14.5" Black Bolt Carrier Assembly and Charging Handle Chrome Lined AR Rifles Matech Flip Up Rear Sight LE6921CK

Colt's Manufacturing

Colt's Manufacturing Upper 223 Remington 556NATO 16.1" Black M4 LE6920CK

Colt's Manufacturing

Colt's Manufacturing Upper 223 Remington 556NATO Black Dust Cover, Forward Assist, M4 Feed Ramps SP63528

Daniel Defense

Daniel Defense DDM4V7 S Upper 556NATO 11.5" Black 1:7 Daniel Defense MFR 10" MLOK Handguard 23-128-00275-047

Daniel Defense

Daniel Defense DDM4V7 Upper 223 Remington 556NATO 16" Black 1:7 MLOK 23-128-02339-047

Daniel Defense

Daniel Defense M4A1 Upper 223 Remington 556NATO 14.5" Pinned (16" OAL) Flat Dark Earth M4 12.0 Rail 1:7 Carbine AR Rifles 23-004-13150

Daniel Defense

Daniel Defense MK18 Upper 556NATO 10.3" Black MK18 1:7 AR Rifles Flat Top 23-004-08013-011