trigger job and other internal works
+/- 500 more shots over 3000
I have only shot a case with this tank so far, but like the fast charge rate. regulator makes no noise like some do. it is a little heavy like a full 20 oz. co2. the subby design is great for tucking your gun in better for a more compact package. the 4500 psi over the 3000 is good too. even with the gas hog I use the air lasts alot longer. going from co2 to HPA is equivalent to upgrading your stock barrel.
Its a great buy, worth buying. in my opinion a barrel and HPA are the most important upgrades.
Second of all just because the tank is fiber wrapped dosaent mean its light, that to prevent it from becoming a shrapnel death bomb in the event the burst discs fail. Then since its a stubby and its a steel tank it is heavyier this tank weighs in at 3.1 pounds !!!! thats haveyer than both of my guns without a hopper or tank on them. !!! What your sacfificing when you get this tank is weight but what you gain is compactability and slightly larger tank size. I get an average of 1400 shots off with mine and my finely tuned dye reflex cocker.