Armalite M-15 Defensive Sporting Rifle .223 Remington/5.56x45mm 16 Inch Threaded Barrel 1/2x28 TPI Collapsible Stock Black 10 Round California Compliant

Barrel is double lapped, chrome lined, chrome moly vanadium MIL-B-11595-E with M203 step down for enhanced corrosion resistance and extended life. Threaded 1/2x28 TPI. Single stage trigger. Flash suppressor. Top of gas block is .293 (+/- .010) lower than top of receiver. Gas block front sight base with MIL-STD 1913 rail. 7075-T6 aluminum forged flattop upper with MIL-STD 1913 rail. Anodized aluminum finish on upper and lower receiver. Comes with one Magpul PMag.