Brand new, ordered wrong one, waited too long to return. My loss is your gain. Never mounted, still full of the factory grease! Specifically for Rugged Obsidian45, but does have common threads for other Suppressor manufacturers. Other manufactures that it should work with are found in the last photo. OD thread size: 1.125-28 Retails for $130. Text is best, rarely check email. 623.nine86.0272