1/2-20 UNF Adapter for Beeman QB Chief
Custom made silencer adapter for 14 mm Beeman QB Chief air rifle. 1/2 UNF standard thread for common air silencers or LDC (lead dust collector). Without thread protector. Please check dimensions of your barrel, there is a version with 9/16″ (14.28 mm) as well, and this one wont fit.