Description Conventional gas pistol operation and utilizes the proven M-16 breech locking system. Rear sight is zeroed at 100 m and adjustable for windage. Front sight is of M-16 type. Integrated MIL-STD-1913 Picatinny rail will accept standard accessories. Muzzle end of the barrel is threaded one half inch - twenty eight to accept standard attachments such as a muzzle brake. Except for the barrel, bolt, sights and mechanism the PLR-16 pistol is made entirely of high-impact glass fiber reinforced polymer. Ambidextrous push bolt safety.Specifications:Barrel Length: 9.2Barrel Length Range: Greater than 7.5Caliber-Gauge: .223 REM.Capacity: 10Finish: OD GreenHand Gun Web Model: Model PLR-16Made in the USASpecific Caliber: 5.56mm NATOTacticalThreaded Barrel Firearms, trailers, and some accessories are only available for purchase in stores. Each location follows all BATF and individual state/county/city laws to insure the desired product is legal for sale. Any info provided online is subject to change, please go to your local store for more accurate information.