There is No C02 cartridge in the Marksman Repeater, it is spring operated
You go to a sports store and purchase one.
The Marksman Repeater doesn't use a C02 Cartridge it a spring operated pistol
It uses a 12 gram C02 powerlett
It all depends on the C02 cartridge. If it's a small 12 oz cylinder, then the answer is NO.
Most all C02 air guns use the common 12 gram C02 cartrage.
depending on the model around 70 - 90 shots
you screw the adapter into the gun, and then the co2 cartridge.
As soon as you release the pressure on the C02 it will loose all it's gas and will then not be able to fire the gun anymore. You must put in a new C02 powerlett to charge the gun again. The old C02 powerlett can be trashed it can not be recharged.
It all depends on the model. Some use a spring or a c02 cartridge or with a hand pump.
Yes, each cartridge only contains a specific amount of CO2 which eventually needs replacing.
It depends on the model of the BB gun. But usually between 60 to 100 shots