The Great Lakes Firearms & Ammunition .223 Wylde Pistol features a 7.5" 4150 CRMOV barrel with a 1:8 twist, a GLFA muzzle device, and durable black nitride finish. The .223 Wylde chamber gives the strength of the 5.56 NATO chamber and the accuracy of a .223 Remington chamber. This allows for the use of 5.56 NATO and .223 Remington ammunition. The pistol-length gas system provides for reliable operation with a variety of ammunition. The flat-top receiver and 7" aluminum M-LOK rail offer a full length Picatinny rail which allows for the mounting of optics, lights, lasers and accessories.