We have seen a lot of the Kral rifles using the snap on connections are having issues leaking on the hose connections themselves. This is due to incompatibility of some of the standard Kral filling adaptors with a standard airgun charging hose. This solution solves this leak. For more information please see the video link below.

We have seen this problem on:
Kral Jumbo
Kral Bighorn
Kral Empire X
Kral Puncher Pro 500
Kral NP500
Kral Jumbo Dazzle / Hi-Cap
Kral Superduty
Kral Empire X
Kral Bighorn
Kral Bigmax
Kral Knight
Kral Ekinoks
Kral Superduty