Very good condition. 223/5.56 NATO cal. Lightweight, 3.4-pound package. The PLR-16 has a conventional gas-piston system and utilizes the proven Johnson/Stoner breech locking method. For adding tactical accessories, it features a integrated Picatinny rail and the muzzle is threaded to accept a muzzle brake or flash hider. Comes equipped with front sight. 9.2" salt bath-nitrided barrel with 1/2x28 threaded muzzle A2-style post front/windage .