Brownells Receivers

Brn-180 350 Legend 16in Complete Upper Receiver Assembly - Brn-180 16'''' Upper Receiver 350 Legend

Brn-180sh Suppressor Optimized 300 Blackout 10'''' Upper Receiver - Brn-180sh 10'''' Upper Receiver 300blk

Brn-180 Gen 2 Sport Complete Upper Receiver Assembly - Brn-180 Gen 2 Sport 16'''' 223 Wylde Upper Receiver Assembly

Brn-180(R) Gen2 223 Wylde 16'''' Complete Upper Receiver Assembly - Brn-180s Gen 2 10.5'''' 7.62x39mm Upper Receiver Assembly

Brn-180(R) Gen2 223 Wylde 16'''' Complete Upper Receiver Assembly - Brn-180 Gen 2 16'''' 7.62x39mm Upper Receiver Assembly

Brn-4(R) Complete Upper Receivers - Brn-4 5.56mm 16'''' Heavy Bbl Complete Upper W/13.5'''' Handguard

Brn-4(R) Complete Upper Receivers - Brn-4 5.56mm 14.5'''' Hvy Bbl Complete Upper W/13.5'''' Handguard

Brn-4(R) Complete Upper Receivers - Brn-4 5.56mm 16'''' Med Bbl Complete Upper W/13.5'''' Handguard

Brn-4(R) Complete Upper Receivers - Brn-4 5.56mm 14.5'''' Med Bbl Complete Upper W/13.5'''' Handguard

Brn-180s Upper Receivers With Pin & Weld Flash Hider - Brn-180s Gen 2 13.9'''' Upper Receiver Pinned/Welded .223wylde

Gau-5a 12.7'''' 1-12 Upper Receivers - Brn-Gau-5a Upper Receiver, 12.7'''' 1-12 Twist, Pin/Weld, Black

Xm177e2 Complete Upper Receivers - Brn Xm177e2 Upper Receiver, 11.5'''', 1-7 Twist, Black

Xm177e2 Complete Upper Receivers - Brn Xm177e2 Upper Receiver, 12.7'''' 1-7 Twist, Pin/Weld, Black

Brn16a1(R) 20'''' Complete Upper Receivers - Brn M16a1 Upper Receiver 20'''' Rifle Length, 1-7 Twist, Black

Brn-4(R) Upper Receiver Assemblies With Chrome Lined Barrels - Brn-4 Assembled Upper 13.7'''' Medium Chrome Lined Barrel Black

Brn-4(R) Upper Receiver Assemblies With Chrome Lined Barrels - Brn-4 Assembled Upper 10.4'''' Medium Chrome Lined Barrel Black

Brn-15 Upper Receivers 5.56mm Nato - Brn-15 5.56mm 13.7'''' Bbl .750'''' Gas Block Upper Receiver

Brn-4 Upper Receiver Build Kits - Brn-4 Upper Receiver Build Kit, 16'''' Medium Barrel

Gau-5a Complete Upper Receiver & 4x Retro Carry Handle Scope - Brn Gau-5a 5.56mm 12.7'''' Bbl 1-12 Twist W/Colt 4x21mm Scope

Gau-5a Complete Upper Receiver & 4x Retro Carry Handle Scope - Brn Gau-5a 5.56mm 12.7''''bbl 1-12 Twist Pin/Weld W/Colt 4x21mm

Xm177e2 11.5''''Adeg W/Colt Optic - Brn Xm177e2 5.56mm 11.5'''' Bbl 1-7 Twt Upper Pin/Weld W/4x21mm

M16a1 20'''' Rifle Length Upper W/Colt Ar-15 4x21mm - Brn-16a1 5.56x45 Nato 20'''' Bbl 1-7 Twist Upper W/Colt 4x21mm

Dd 14.5'''' M4a1 Riii Upper Receiver W/ Eotech Optics - Dd 14.5'''' M4a1 Riii Upper W/ Exps3-0 Holographic Red Dot

Dd 14.5'''' M4a1 Riii Upper Receiver W/ Eotech Optics - Dd 14.5'''' M4a1 Riii Upper W/ Exps2-0 Holographic Red Dot