Rosco Manufacturing PB-145-SPR-6MM-7.5-I Purebred 6mm ARC 14.50" Nickel Boron Stainless Steel Barrel
This Rosco 14.5" 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 barrel features an Intermediate Gas System, requiring an Intermediate Gas Tube