5.56x45mm NATO Parts Kits

Rosco K9 Sauce Pack 5.56 12.5 Threaded Barrel

DoubleStar AR270 AR15 Lower Parts Kit

Rosco Bloodline 11.5" Barrel, 5.56x45mm - SPBL115556BCGGTCNGB001

Colt AR-15 Lower Receiver Parts Kit

Colt AR-15 Bolt Repair Kit

Colt AR-15 Field Repair Kit

Colt High Wear AR-15 Parts Kit

Ar-15 Lower Parts Kit 5.56 - Ar-15 Lower Parts Kit 5.56 No Fire Control Grp/Pistol Grip

Ar-15 Upper Receiver Completion Kits - Brn M16a2 Upper Receiver Completion Kit

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

Ar-15 Lower Parts Kit W/ Geissele 2 Stage Enhanced Trigger

Ar-15 Lower Parts Kit W/ Geissele B-Gc Competition Trigger

Ar-15 Lower Parts Kits W/ Trigger Assemblies - Ar-15 Lpk W/Trigger Assembly Nickel

Ar-15 Lower Parts Kits W/ Trigger Assemblies - Ar-15 Lpk W/Mil-Spec Trigger Black