Umarex Umarex Gauntlet

I have a problem and need advise- I have a new Umarex Gauntlet 2 SL .30 cal. , it will not take air- I took the tank of and checked all the fittings they are tight, the tank will fill when its not on the rifle, but when I screw the tank back into the gun it leaks air out the end of the barrel, it will not fill with tank on gun, could someone please help with what might be the problem.
 
Have one in .25 and it won't fill. Using a compressor and I can feel the pulse of air coming out of the barrel.
Was working & holding air & shooting OK - then after sitting about 3-4 weeks it was out of air. Now it won't fill.

Add in - FX Streamline .25 won't fill using a compressor - after re-sealing the fill area. Am told I need to try an Air Tank to push in a higher pressure and get something to seal so it will fill. I don't have an air tank and am not looking at buying one. Buying these is getting very expensive.

Evanix Blizzard in .22 - puked air from the magazine area & now won't hold air.

Air Arms S510 FAC Ultralight - won't fill at all.

Never had these problems with the old original Benjamin Marauder in .177. I sold that one when I got the Rainstorm.

The Evanix Rainstorm in .177 is a nice one and is holding air, fills fine and shoots well.

Was looking at a newer FX Dreamline, but with my luck and a pile of rifles that are not shooting I'm not going to do it.

Just frustrated & can't really afford the cost to get all these working - and from what I see the value of air rifles that won't hold air is not much.

Probably just go back to my AirArms TX200. It is still working well.
 
  • Like
Reactions: Normkel
Hajimoto, and Buckrail joint productions. Tactical Guantlet build I did today. .22 cal SL Guantlet 2.
Check out Hajimoto productions for anything Guantlet.

IMG_20250730_180620_380.jpg


IMG_20250730_180700_996.jpg


IMG_20250730_180611_775.jpg


IMG_20250730_180716_152.jpg


IMG_20250730_180724_034.jpg


IMG_20250730_180709_358.jpg


IMG_20250730_180630_280.jpg


IMG_20250730_180642_975.jpg


IMG_20250730_180601_704.jpg