Target Fluted Barrel Assembly comes complete with Barrel Nut, Washer and Tapped for 7/8" Cantilever Scope Mount [mount not included, see item #85]. This 4140 all steel barrel is 16" in length, .22 cal., with a twist of 1:14. The aluminum barrel nut is black anodized and the barrel is blued a black finish, weight 2.25 lbs.