Steel adapter allows you to install muzzle brakes and flash hiders on an AK -47 tactical rifle with an unthreaded barrel. No machining necessary; four setscrews secure adapter to barrel in seconds. Adapter features 14mm-1.0 left hand threads for 7.62x39 caliber AK-47 and SKS rifles. Outside diameter of the barrel must be .65 to fit into the adapter. (Muzzle Brake sold separately)
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