PROOF 100387 PR15 223 11.5 7TWST 4GRV 1/2-28 SS

Proof Research 100387 AR-Style Barrel 223 Wylde 11.50" Rifle Length Gas System 1:7" Twist 4 Grooves, 1/2"-28 tpi, Stainless Stainless
An optimum combination of high tensile strength along with requisite toughness to withstand extreme chamber pressures encountered during firing. Excellent erosion wear characteristics and corrosion resistance.