?Barrel nut is made from steel drawn through a special die and stress relived in a precisely controlled furnace, giving it high resistance to metal fatigue and distortion. Barrel nut won’t warp and will stand up to years of hard use. Fits all standard AR-15/M16 upper receivers and barrels. Mfg: Core Rifle Systems SPECS: Steel, phosphate finish, matte black.
Core Rifle Systems Ar-15 Barrel Nut
$10.99
Specially-Made Barrel Nut Resists Fatigue & Distortion
