Description
Starts with the Luth-AR 16″ Lo-Drag, Classic Bull Barrel, made from 4150 CMV with a 1-7″ twist mated to their Lo-Drag flattop receiver which includes the Luth-AR bolt carrier and charging handle. The Free Float version features the Lo-Drag Palm handguard which includes the Luth-AR bolt carrier and charging handle. Upper Specs: 6061-T6 Extruded material Hard coat anodize Black Bolt Specs: Bolt: Carpenter 158 Extractor: 4140 Alloy steel Army Spec Heat Treatment Manganese Phosphate Bolt Carrier Specs: Carrier: 8620 steel Cam pin: 4340 Alloy steel Carrier key: 4130 Alloy steel Army Spec Heat Treatment Manganese Phosphate Barrel Specs: Lo-Drag Target Crown Bull Barrel 16″ Available in 16″ 5.56 4150 CMV Gas Block Journal Diameter .936 Gas Tube Length — Carbine 1-7 RH Barrel Twist 6 Lands and Groves M4 Feed Ramp Button Broached Not chrome lined