Best Fittings Air Arms Universal 1/2 UNF M/M Adaptor - Brass
Universal 1/2' UNF Male/Male Silencer Adaptor.
Polished Brass. Allows for the fitting of any standard female 1/2" UNF silencer to weapons sporting a female 1/2"UNF. 16mm body. Comes complete with knurled end cap. Screw in fitment.