Results for Brownells 5.56x45mm NATO Receiver Parts

Brn-601(R) Retro Complete Upper Receiver - Brn-601 5.56mm 20'''' Bbl Upper Receiver

Brn-4(R) Complete Upper Receivers - Brn-4 5.56mm 10.4'''' Heavy Bbl Complete Upper W/9'''' Handguard

Brn-4(R) Complete Upper Receivers - Brn-4 5.56mm 10.4'''' Med Bbl Complete Upper W/9'''' Handguard

Brn-4(R) Upper Receiver Assemblies With Chrome Lined Barrels - Brn-4 Assembled Upper 14.5'''' Heavy Chrome Lined Barrel Black

Brn-15 Upper Receivers 5.56mm Nato - Brn-15 5.56mm 11.5'''' Bbl .750'''' Gas Block Upper Receiver

Brn-15 Upper Receivers 5.56mm Nato - Brn-15 5.56mm 16'''' Bbl .625'''' Gas Block Upper Receiver

Brn-15 Upper Receivers 5.56mm Nato - Brn-15 5.56mm 16'''' Bbl .750'''' Gas Block Upper Receiver

Brn-180s(R) Gen2 13.9/14.5 223/5.56 Complete Upper Receiver Assy - Brn-180 Gen 2 13.9'''' 223 Wylde Upper Receiver Assy Black

Brn-180s(R) Gen2 13.9/14.5 223/5.56 Complete Upper Receiver Assy - Brn-180s Gen 2 14.5'''' 223 Wylde Upper Receiver Black

Lightweight Ar-15 Starter Kits - Lightweight Ar15 Starter Kit 10.5'''' Handguard 12.5'''' Bbl W/Bcg

Lightweight Ar-15 Starter Kits - Lightweight Ar15 Starter Kit 10.5'''' Handguard 11.5'''' Bbl W/Bcg

Lightweight Ar-15 Starter Kits - Lightweight Ar15 Starter Kit 14'''' Handguard 14.7'''' Bbl W/Bcg

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

Brn-4 Upper Receiver Build Kits - Brn-4 Upper Receiver Build Kit, 14.5'''' Medium Barrel

Brn-4 Upper Receiver Build Kits - Brn-4 Upper Receiver Build Kit, 10.4'''' Medium Barrel

Xm177e2 Complete Upper Receiver & 4x Retro Carry Handle Scope - Xm177e2 Upper Receiver 11.5'''' 1-7 & Retro Colt 4x Optic (Dupe

Xm177e2 Complete Upper Receiver & 4x Retro Carry Handle Scope - Xm177e2 Upper Receiver 11.5'''' 1-12 & Retro Colt 4x Optic (Dup

Xm177e2 11.5''''Adeg W/Colt Optic - Brn Xm177e2 5.56mm 11.5''''bbl 1-12 Twt Upper Pin/Weld W/4x21mm

Xm177e2 12.7'''' Carbine Length Pinned/Welded W/Colt Ar-15 Optic - Brn Xm177e2 5.56mm 12.7'''' 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 1-12 Twist Upper W/Colt 4x21mm

Dd 10.3'''' Mk18 Riii Upper Receiver W/ Eotech Optics - Dd 10.3'''' Mk18 Riii Upper W/ Exps3-0 Holographic Red Dot

Dd 10.3'''' Mk18 Riii Upper Receiver W/ Eotech Optics - Dd 10.3'''' Mk18 Riii Upper W/ Exps2-0 Holographic Red Dot

Dd 14.5'''' M4a1 Somcom Upper Receiver W/ Eotech Optic - Dd 14.5'''' M4a1 Socom Upper W/ Exps2-0 Holographic Red Dot

Dd 10.3'''' Mk18 Socom Upper Receivers W/ Optics - Dd 10.3'''' Mk18 Socom Upper W/ Exps2-0 Holographic Red Dot