CMMG MkGs .40 S&W Banshee Upper Group Receiver 5in 1-16 Twist 0.578 X 28 TPI 13.7in Charcoal Green 40B51A3-CG. 40 S&W has proven itself to be an incredibly capable round. Now anyone looking to build a powerful and ultra-compact .40 S&W personal...
CMMG MkGs .40 S&W Banshee Upper Group Receiver 5in 1-16 Twist 0.578 X 28 TPI 13.7in Charcoal Green 40B51A3-CG. 40 S&W has proven itself to be an incredibly capable round. Now anyone looking to build a powerful and ultra-compact .40 S&W personal...