Results for 5.56x45mm NATO Receiver Parts

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

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 1-7 Twist Upper W/Colt 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

Brn16a2 20'''' Upper W/Colt Ar-15 4x21mm - Brn-16a2 5.56x45 Nato 20'''' Bbl Upper Receiver W/Colt 4x21mm

Brn-601 20'''' Upper W/Colt Ar-15 4x21mm Optic - Brn-601 5.56mm 20'''' Upper Receiver With Colt 4x21mm Scope

Mike-15 Stripped Lowers - Mike-15 Stripped Lower Receiver W/Pic Rail 5.56mm

Mike-102 Stripped Lowers - Mike-102 Stripped Lower Receiver 5.56mm

Mike-102 Stripped Lowers - Mike-102 Stripped Lower Receiver W/Pic Rail 5.56mm

Mike-15 Stripped Lowers - Mike-15 Stripped Lower Receiver W/ Pic Rail 5.56mm

Mike-15 Stripped Lowers - Mike-15 Stripped Lower Receiver 5.56mm

M4 5.56 Complete Monolithic Upper Receiver Groups - M4 Le6940 Upper Group 16in Stripped

Ar-15 M4 Build Kit M-Lok 5.56mm - Ar15 16'''' M4 Build Kit M-Lok Black

Ar-15 M4 Upper Receivers M-Lok 5.56mm - Ar-15 16'''' M4 Upper Assy 5.56 No Bcg/Charging Handle

Ar-15 M4 Upper Receivers M-Lok 5.56mm - Ar-15 16'''' M4 Complete Upper Assembly

Ke-15 Forged Mil-Spec Complete Lower Receiver 5.56mm

Ke-15 Billet Stripped Lower Receiver W/ Flared Mag Well 5.56mm - Ke-15 Billet Stripped Lower Receiver W/ Flared Mag Well

Ke-15 Forged Stripped Lower Receiver - Ke-15 Forged Stripped Lower 5.56mm

M4a1 Stripped Socom Upper Receiver 14.5in 5.56 - M4a1 Socom Block Ii 5.56 Stripped Uppr 14.5'''' Bbl & B5 Sopmod

Aero Ar-15 Assembled Upper 5.56mm Build Kits - Build Kit 5.56mm Assembled Upper 16'''' Carbine 12'''' Hg Black

Aero Ar-15 Assembled Upper 5.56mm Build Kits - Build Kit 5.56mm Assembled Upper 16'''' Mid-Length 12'''' Hg Black