I have a used but in good condition, Griffin Armament M4SD Tactical Compensator. Has about 300ish rds though it. I have the shims it came with. The shim with the tab has a scuff on it, other than that it is fine. I don't think you even need it unless you plan to run one of their suppressors. Looking for $65 shipped priority 2/3 day, with tracking. Quickest way to contact is email through here or pm. I prefer paypal gift or YOU pay the fees. USPS MO is fine too.
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