Fits over the BEST Fittings Quick Coupler Plug and bonded seal washer.
Covers the complete Quick Coupler Plug for a tidy look when used as a permanent fitment on the gun such as Early Falcons, Titan, and other guns with 1/8″ BSP male threads where the fill valve is situated within the gun and the thread has been fitted with one of ourQuick Coupler Plugs.
