Bushmaster Carbon 15 Type 21 .223 PST Manufacturer Bushmaster Firearms Model Carbon 15 Type 21 Type Semi-Automatic Pistol Caliber 223 Capacity 10+1 Action Single Action Finish Black Stock Black Plastic Pistol Grip Sights Front: Heavy Blade - Rear: Ghost Ring Barrel Length 7.25" Stainless Steel Overall Length 20" Weight 47 oz. Packaging Black Hard Case # of Mags 1 Additional Features * Muzzlebreak = Quick Detachable Compensator * Rifling: 1-9RH