Griffin Armament

This adapter converts tapered SIG rifle barrels to traditional 90 degree shoulders, allowing the customer the ability to then mount whatever market muzzle device product they wish to their SIG firearm. 

FEATURES : 

• Made of 17-4 stainless steel
• Heat Treated to H900 specifications
• 1/2" for 9mm .223/556 .22
• 1/2" is not compatible with 13.5x1 LH barrels