$157.95
In stock
· 9310 Steel 5.56/.223 bolt· Shot peened· Black Nitride finish· 4140 Gas Key
· 4140 Cam Pin
· Machined from solid 4140 bar stock, heat treated and shot peened· Extractor insert included· Firing pin precision machined from 17-4 H-900 Stainless Steel· Midwest Industries Limited Lifetime Warranty