Rosco Manufacturing PB-20-SPR-6MM-7.5-R1 Purebred 6mm ARC 20" Nickel Boron Stainless BBL,Rifle BBLs

This Rosco 20" 6mm ARC Barrel was made to enhance the performance the 6mm ARC. The SPR contour is well suited for cold bore shots on target as well as keeping the weight at a great balance. Gas ports were sized according to the most popular precision bullet weights and suppressor use. This 20 6mm ARC barrel features a Rifle +1 gas system.