Silencerco Big Bore Derringers Mount, 5/8×24 RH, Fits Harvester AC669
SILENCERCO. HARVESTER BIG BORE THREAD MOUNT ADAPTER
•For Harvestor Big Bore •TPI: 5/8 x 24 •Interchangeable modular thread adapters allow the Harvester muzzle brake to be mounted on virtually any barrel
