RECEIVER-Hard anodized aluminum-Flat-top receiver M-1913 MIL-STD rail at the 12 o'clock position-A2-style front sight adjustable rear sight-UID labelBARREL-20" button-broached chrome-lined-A2-style compensator-1:7" RH twistSTOCK-Fixed A2 rifle buttstock-Knights Armament M5 RAS adapter rail with rail adapter coversOPERATING CONTROLS-Ergonomic safety lever-Ergonomic magazine release-Forward assistMAGAZINE-Aluminum body-Low friction follower-AR-style-30 round capacity