These are raw, heated treated brakes! Our single chamber muzzle brakes are precision machined out of 17-4 stainless steel. Weight approximately 2.3oz 1.5" Long 5/8 - 24 has .30 caliber bore 1/2 - 28 has .223 caliber bore .950 - 24 external threads with 20 degree taper - compatible with TBAC "CB...
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