Every time you refill the BB's tank take time to relube the o-rings...the bottom ring tends to cook to the carto and if you let it just stay there for several tankfuls it really locks in.
YEP!!! My last carto did NOT wanna come out! (I had to go and hunt for PLIERS! EEEK!) Finally came out using pliers and brute force!
LOL! Seriously! ;-)


