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

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