12 grams are non refillable.
If you mean the standard 12 gram CO2 cartridges, they are not reusable.
12 gram powerlet
No. Most airsoft guns that run off of CO2 use unthreaded, disposable 12 gram cartridges.
If you are asking about the small 12 gram C02 cartridges, then,"No" they are not reusable. However, larger tanks (like 20 oz) with pin valves on the top are refillable.
Any CO2 tank with standard threading. It cannot use un-threaded disposable 12 gram cartridges without an adapter.
No, they must be filled (and not with air). The only exception is the silver 12 gram cartridges for pistols and stock class guns.
No. the only full air canisters are 12 gram CO2 cartridges, all others are sold empty under law.
No, Co2 airsoft guns run off disposable 12 gram cartridges, whereas green gas guns have internal storage and are refilled by propane tanks. Actually there are now dual use guns and adapters to use CO2 to fill green gas guns .
you buy new ones not refill them
No! 12 gram cartridges have no valve and will not fit in and cannot in any way be transfered to a valved tank.
It uses a 12 gram C02 powerlett