This Rosco 18 in .223 Wylde Barrel was made to enhance the performance of the original MK12 SPR. The medium 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.

• Barrel Length: 18 inches
• Barrel material: 416r Stainless
• Barrel caliber: .223 Wylde
• Medium profile
• Twist Rate: 1 to 8
• Gas Block Size: .750
• Barrel Thread: 1/2 x 28; Gas Sytem Length: Rifle