There are over 1000 different model BB Guns. each one is different. You need to state the make and model. Your question is not possible to answer.
The 15XT has a built in seal.
Most likely it has a blown seal.
Most likely a broken seal.
If its a BB Gun, Then Yes.
BB gun. Fires a round BB.
Benjamin Breckinridge Warfield did not invent the BB gun.
Which model, what is the condition of the BB gun or is it a BB rifle..
It's a BB Gun.
A BB gun is a gun which shoots BB-size pellets, typically with the use of compressed air, or a compressed spring.
You don't magnetize the BB's. The Magnet is inside the BB gun. The gun has to be taken apart and the magnet that holds the BB's replaced. Not all designs use this method of holding BB in place.
You can mail a BB gun via UPS.
This BB gun was made by WHO?