Gamo New tc35L!!!

Just got this Friday and I have to say I'm loving it.. I'm getting 250+ fpe with 142gr slugs and around 1in groups at 50yards .. still playing around with different cast slugs but I'm happy with it so far ...
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I have the Evanix REX. 35 cal version of this rifle (and pistol) and would like to get the larger air Tank like yours has. Have anyone found a source for air tanks? I shoot cast slugs in both of the Rex guns. The triggers were really bad on both guns, so I took them apart and stoned the Sears as well as reaming and installing tighter fitting pivot pins. This mod really helped trigger pull and hopefully group size.

Thanks