Please ask your question again. No one makes a 2 gram air cartridge. I think you are asking about a 12 gram C02 cartridge. CROSMAN never made a model 1107. Check your pistol again
It uses a 12 gram C02 powerlett
depending on the model around 70 - 90 shots
Most all C02 air guns use the common 12 gram C02 cartrage.
Not normally. In fact I can not think of any pellet rifle that takes a 16 gram C02 cartridge.
The Model 150 uses any 12.5 gram C02 cylinder.
There is No C02 cartridge in the Marksman Repeater, it is spring operated
This model took an 8 gram CO2 cartridge. It's hard to locate them now, BUT a good substitute is an 8 gram Nitrogen (N2O) that you can find at any large Liquor store. They will work in place of a CO2 cartridge and they are not expensive. N2O is used to whip cream.
Take the left plastic grip off the gun. It should pop off. Remove the old C02 bottle (You may have to unscrew the bottom screw a little. ) Replace the C02 with a new 12 gram C02 bottle. Then using a coin screw the bottom screw in until it stops. This will charge the gun with new C02.
You go to a sports store and purchase one.
The Marksman Repeater doesn't use a C02 Cartridge it a spring operated pistol
Many companies make 1911 looking handguns, some of them use 12 grams, others use green gas, spring or batteries. You need to check what company, and what model you are looking at.