Came with a used Ruger Ranch I bought, original owner stated he fired 10 rounds. I scratched it up a bit taking it off, more so the crush washer than the compensator. $45 shipped
Specs/details here: https://www.wingtactical.com/firear...ices/slr-rifleworks-synergy-5-56-compensator/
Specs/details here: https://www.wingtactical.com/firear...ices/slr-rifleworks-synergy-5-56-compensator/