The .300 Blackout is based off of a shortened 5.56x45mm case that is necked to .30 caliber. For AR-15 platform rifles and pistols it only requires changing the barrel to go from 5.56 to .300 Blackout. The Blackout’s main purpose is to be used at subsonic velocities in suppressed firearms. Many bolt action and single shot rifles are now being produced in this caliber as well.

Please be aware that stock levels on this website are currently only updated approximately every 24 hours, we advise getting in touch with a member of staff to ensure availability.

Furthermore, some images used on these website are standard images rather than the individual products, images of individual products can be provided on request by emailing our sales team at; sales@double-deuce.co.uk .