Saber Tactical Extended QD with 1/8" BSPP Male Threads and seals 30mm long collar provides easier access to connect and disconnect QD Perfect for rifles with limited access to the fill port Intended for use with the FX Impact, but will work on any rifle with a male QD fitting 1/8" BSPP Female threads to connect to hose or to add male QD fitting Includes bonded seal and delrin seal .