Best Fittings Silencer Adaptor For Air Arms S400/410
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£21.95
Best Fittings Silencer Adaptor, 10.0mm Slip-on (fits Air Arms S300/400/410) to give 1/2" UNF thread
Best Fittings Silencer Adaptor For Air Arms S400/410
Best Fittings air gun silencer/moderator adaptors can also be used to fit muzzle brakes and other barrel mounted accessories.