Rock River Arms LAR-15M Tactical Carbine chambered in .458 Socom features a 16″ chrome moly bull barrel with a 1:14 twist. Additionally this model comes with a RRA lightweight M-Lok compatible free float 15″ rail, Hogue rubber pistol grip, RRA operator break (5/8×32 thread), RRA six position NSP2 stock, a RRA two stage trigger and RRA winter trigger guard. This rifle weighs in at only 7.8 pounds and comes with 1.5 MOA accuracy at 100 yards.