Air Venturi QD Fill Port Protector Cap

Your personal, very professional, and very helpful, great products.

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Awesome company.

Looks & price.

Use a slightly thicker O-ring for a tighter fit, or install a magnet inside the cap. Once installed on the fill nipple, there is about 1mm of play past the point of O-ring engagement.

Seems it would be easily knocked off during a walk/stalk hunting situation.

Good quality aluminum

Needs to have looser tolerances

Seems to be well made, but both examples I bought were far too tight to be easily removed. I would look elsewhere if ease of removal is important to you.

Fits my Benjamin Gunnar fill port.

Maybe make brand specific (?)

I bought two more ,hoping to use on my Hatsan Factor & Spritech compressor . Neither fit w/o some honing inside the cap. Not all " fosters" are the same !

Everything

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Go on get some of these low costs looks great fits great

It protects the quick fill port and makes it more aesthetically pleasing.

It's WAY too easy to lose!! I think I'll tie some cord around the groove of the cap and the other end around the fill port so it doesn't go missing.

Buy multiple. You're almost guaranteed to misplace it.

Perfect fit for my Gauntlet. (It's a shame that Gauntlet doesn't come with an original air port cap.)

Make it a little shorter, so it will flush with the rifle stock.

Nice fit- protects from debris

Very well built valve cap. Unfortunately it cant be used for the gun I purchased it for because it can be removed without removing the compensator first.

Should have an alert when buying that it may not work with some barrels configurations.

If you arent running a compensator, silencer its probably fine.

It is very difficult to remove from the fill port of my gun (2020 LCS Air Arms SK-19), and sometimes it requires a lot of force to install it. It wasn't as bad for the first couple of months but it has since become very difficult.

I would do away with o-ring all together and instead use a magnet to secure the cap. At the very least change the o-ring so that it is not as difficult to remove or install.