An Air Rifle is either a BB rifle or a pellet rifle. It uses air or gas to propel the projectile.
No
A sporter air rifle and what?
Are you asking how do you swap and air tank on an air rifle, or swap for and air rifle? In most air rifles you put it on safe and swap out the tank by unscrewing it and replacing it.
can i ship air rifle to trinidad and what i need
When you say Air Rifle you are referring to a pellet rifle not a firearm. At present there are no 300 Cal air rifle being made.
Only if the scope is designed for an air rifle. Because of the recoil being different on an air rifle than a firearms rifle. Air rifle scopes are made differently than firearms scopes. A firearms scope can break it's glass mounts if it is used on an air rifle.
Do you mean an air Rifle? NO, Not in the United States.
I know of NO Co-roman air rifle. Please provide more details. Do you mean Crosman 180 air rifle?
It all depends on who made the air rifle and the power plant that the rifle uses.
There is NO Best and inexpensive air rifle. A good quality air rifle is going to cost you money. A cheap air rifle will reflect it quality by how poorly it performs.
You need to state the model to even have a chance of identifying the age of the air rifle. There is no list of every air rifle by serial number.