does not include shipping and tax
Can this tank be removed from the gun and put back in later like those small camp stove propane tanks.
No, it has no check valve. It will just vent out.
what is the differnts between 88gram and 90 gram 2gram differnts hurt some guns?
No, it will work fine.
how many for $8.95
Can we leave the CO2 tank in the beretta cx4 for say, one month?
No, you will destroy the rubber seals. Plan on shooting it empty after charging the rifle.