Tuning Gauntlet Foster Fitting

[Skeeter41]

My son has a 22 cal gauntlet. When I filled it for him tonight after sitting for a couple months it leaked air back out of the foster fitting hole.

When I took it a part the o ring on the valve (bottom piece in the picture)

inside the foster fitting was hard and cracked.

Where can I get new o rings that small or can I replace the entire foster fitting? If so, what do I replace it with?

 

[Odoyle]

They come with a 3 year warranty I would have UmarexUSA send you the o-rings under WARRANTY.

 

[KatoKevin454]

I've cleaned the stem and replaced with a Harbor freight O-ring from HF O-ring kit, worked great, buna nitrile o-ring, the O-ring kit is great to have just incase.... get a new valve from Umarex and rebuild the old valve for a spare.

 

[Skeeter41]

I will give them a call on Monday. I will get the kit to see if it has one that works to get him through until Umarex send a new one.

 

[KatoKevin454]

I think it was the 006 O-ring in the kit that I used, the kit is handy since it has some sizes in it to work with most of my Airguns, I have about 10-12 airguns so Universal kits seem to work for me....

 

[Skeeter41]

Putting the solution on here in case someone searches it in the future.

The o-ring you need is a 1x3 mm ring. They can be found in the harbor freight metric oring kit.

Thanks for everyone's help