yes it does on the top of the gun but you can get a fold able arm for it
Recommend you ask a gunsmith for help.
If you are asking about the S&W Shotgun. Then NO not at present.
It a pump action single shot each pump. 19 shots.
What do you mean leaving 3 BB behind. Do you mean still in the gun. What kind of gun? Give more detail
Drop the magazine and clear the chamber.
Go to S&W's web site and request a manual. I have not seen one online. If they don't have one for you, find a copy of Gun Digest's "How to....." series. They did a book on revolvers, pistols, shotguns, etc..
A shotgun made for Smith and Wesson, sold under the Smith and Wesson name.
"1000000000000000000000 FPS it is sweet"? Morons have to much free time From what I can tell it is about 290 FPS. It looks a decent gun for the price. If you like this gun check out the Smith & Wesson M3000 Airsoft Shotgun.
Standard Catalog of Smith and Wesson
The Wesson part of Smith and Wesson.
Smith and Wesson will tell you if you call them
Horace Smith, Daniel Wesson