Professional Ordinance Carbon-15 Pistol in 5.56mm. Overall this pistol is in excellent condition. Mechanically it functions as it should. The bore is bright and mirrorlike with strong lands and grooves. The pistol features an eight inch barrel, a thirty round magazine, and near total construction of carbon fiber save for core components such as the bolt and barrel which are made of stainless steel. The pistol is notable for being extremely lightweight at marginally under three pounds unloaded.