This 16″ M4 contour profile barrel is made of 4150 chrome moly vanadium steel with a parkerized finish, a carbine length gas system with a 1:7 twist rate.
The barrel is chambered in 5.56 NATO and machined with M4 feed ramps in the barrel extension.
16″ M4 Contour Barrel
4150 Chrome Moly Vanadium Steel
5.56 NATO Caliber
Carbine Length Gas System