you need Co2 to fire any paintball gun, it is what physically moves the ball out of the barrel.
No paintballs will be able to fire out of a Desert Eagle
The purpose of a paintball gun is to fire paintball pellets, to mark opponents in the game of paintball.
There are no background checks required for paintball markers.
no, because the air is what pushes the paintball out off the barrel.
it matters were
A paintball gun needs CO2 (or HPA) to fire at all.
No they fire real rounds on a range.
Paintball guns do not qualify as firearms, and as such you can fire it as close to the house as your heart desires. To be safe however, be sure to fire AWAY from the house and towards a target that will stop the paintball before it exits your yard. Shooting into someone else's yard WILL be considered as a criminal offence if reported.
a butterfly valve.
Nope not at all , Load and fire
No. A paintball gun is not considered a fire arm anywhere because it does not use an explosion to propel a metal object.