does not include shipping and tax
Ok then how long can you keep the co2 cyl in the gun?
You can keep it there indefinitely as long as you don't store it in the open area where it has a chance to get too hot. Always use pelgun oil and that will ensure your seals are lubricated and will not dry out.
can you take out the co2 cartridge without losing the co2?
no, you cannot
What FPS can I honestly expect in 22cal?
Specs say 655 fps usually pretty close to that figure , chrony to be sure.
you offer a compensator for this rifle will it make it quieter,more accuate in windy weather and do you have to remove the front sight to install
Pyramyd doesn't offer anything like that.
what is the longest pellet the mag will take