ROCK RIVER ARMS LAR-15M (LAR-15) STANDARD A4
.223 Wylde chambered for 5.56mm and .223 Rem. cal., GIO, 20 in. CM HBAR barrel, A2 flash hider, A2 front sight base, rifle length gas system, forged LAR-15M (LAR-15) lower and A4 upper receivers, two-stage trigger, A2 buttstock, overmolded ...