Jams, I have owned several Huben K-1's and 2 GK1 and have worked on several. I for one as well as my friends never push the projectile in further other than how ever far it goes in with thumb. Another thing is usually the reg. pressure setting has to relate with the power wheel setting. Loose...
Selling a Theoben Rapid MFR .22cal. Just been resealed and Regulator rebuilt. Setup to shoot Jsb 16gr. @720fps for 42 shots. Mouse fart quiet with AZ shroud sys. AZ quick bottle fill sys. Included is one magazine, 2 bottles, fill adapter. The stock does have some pressure dents but nothing...
Selling an Artemis PP750 .22CAL. multi shot. Included 4 magazines(2 factory & 2 Carms), set of wood grips, extra o-rings, LDC adapter, Scope rail extension, Huma Regulator. Asking $250 shipped. Accept PayPal friends and family or USPS m.o.