Avengers M5 Brass Fill Valve for Gas Powered Pistols, Rifles, and Grenades

"Ah yes, the fill valve for Avengers 40mm rounds.

I like these, but the easily rebuildable nature thanks to the unscrewable butt-cap means that these ship from the factory with uncoated threads on the endcap. Over time, these unscrew and start leaking.

On every new Avengers 40mm round, or new valve body, I put a tiny bit of blue loctite on the threads to keep them from coming undone over time.

-1 star for the inconvenience. Excellent product otherwise, easily rebuildable with 3x1x1mm O-Ring's.