The 3 lug adapter features the patented go/no go gauge.The no go/go gauge provides confirmation that your suppressor is properly attached, for a surprise free shooting experience.The 3 lug adapter is compatible and used in conjunction with oss's 3 lug mount.This 3 lug adapter is made to 9mm hk spec and is not compatible with 45acp.
Finish: Black
Model: Obsidian
Thread Pattern: 13.5x1 LH tpi
