16″ 5.56 Classic Fde Rifle Kit

AR15 Rifle build kit includes parts necessary to complete your 80 percent AR15 lower [not included]. Chrome Moly steel barrel chambered in 5.56 NATO with a 1:7 twist rate, M4 barrel extension, and a Mid-Length gas system. The barrel is finished off with a standard handguard, F-Marked gas sight base, and A2 flash hider.