US Patent No: D898,155 A Precision Cam Pin designed with enhanced dimensions and tighter tolerances over the standard part, improving shot to shot consistency in AR pattern weapons. Details: CNC Swiss Screw Machined 4340 Steel Precision ground Pin body Tighter tolerance firing pin hole Head design that minimizes contact with the upper receiver sidewall yet fully maintains bolt control and stability Trademark directional arrow for uniform parts lapping Finished in Thin Dense Chrome
