CMMG 8" Barrel and BCG Kit 4140CM SBN 9mm Luger, Black Nitride - 99D517A

This CMMG kit includes an 8" medium taper 4140 chrome moly barrel with salt bath nitride finish and a radial delayed blowback bolt carrier group, chambered in 9x19 NATO. The barrel features a 1:10 twist rate, 1/2-28 thread pitch, and weighs 1.7 lbs. Compatible with AR-15 platforms; requires an enlarged ejection port for reliable operation.