Add a compensator, weaver accessory rail, Red dot sight and tactical flashlight.
Yes it is removable.
Cost prohibitive
Not normally but yes if the person is hit in a vulnerable spot.
Depends on the revolver. If it has individual shells, it is very likely you load each individual shell from the front. and if the shells are not removable, it is likely somewhere in/under/by the grip you will load the bb's.
Crosman doesn't modify existing models. But you can order a custom model made for you. See the link below. Also there are several airgun smiths that do modify existing airguns. They do all kinds of modifications and repairs. See the link below.
All the extra doo-dads do not make the pistol perform any better. Now if you want it to look cool and the extra $80 is no problem, then it will buy you a pistol that shoots the same with of without all the attachments. It's up to you and your wallet.
the head
CROSMAN 2100 You can find CROSMAN Parts and manuals at ( see the link below) This should give you a diagram on how to dissamble a crosman 2100.
Adam Crosman is 179 cm.
Henrietta Crosman is 5' 4".
it will raise t4 levels
Yes Crosman selles the real Crosman XT Storm at Walmart.