The Rock River Arms BT3 X-Series rifle is well equipped for general duty use as well as competition use. It features a 18" fluted stainless steel barrel, mid-length gas system, RRA Two Stage Ultra Match trigger, free floating M-LOK handguard, 6 position Operator CAR Stock, and weighs in at 8.7 lbs.Features :Hogue Rubber GripRRA Operator Carbine Stock"17" Lightweight M-LOK Free Float Handguard""18" Fluted Stainless Steel Barrel,Two Stage Ultra Match TriggerHunter Muzzle Brake1 MOA at 100 Yards