The Jawbone is built around a Battlefield Green anodized aluminum receiver with a full-length Picatinny rail for mounting optics, lights, and lasers, giving the shooter complete accessory flexibility right out of the box. The 5" threaded steel barrel with a 1/2x28 thread pattern is finished in black QPQ for long-lasting corrosion and heat resistance, and the Glock-compatible magazine system opens up a wide range of magazine options including the included 33-round capacity.