spring drives a piston that pushes air
When you cock the rifle it compresses the gas behind a piston just like a spring. Basically it replaces the spring.
When the rifle is cocked, a spring is compressed. Pulling the trigger releases the spring, which pushes a piston forward, The piston compresses air as it moves. The compressed air blows the BB or pellet out of the barrel.
No such rifle
THAT DOESNT WORK BECUASE THEY ARE TWO DIFFRENT GUNS. AN AK47 IS AN ASSAULT RIFLE. A SNIPER IS A DIFFERENT KIND OF RIFLE.
no
Not usually. There are several factors involved besides the spring, but the .22 will usually use a stronger spring to propel the heavier pellet.
No
No
Yes it can but getting the current rifle "Tuned" by an expert will get you better results. Tuning will make the spring and trigger perform better.
No. the Remington is a spring system air rifle. It requires that it only be cocked and then fired to work. No C02 is required.
Yes you can put a bipod on any rifle.
Yes