Never?
no
Yes
Unlikely
You can purchase the pistol grip for a Stevens model 67 series E 12 gauge shotgun at most gun stores and at most gun shows. You can also purchase this type of accessory at hunting supply stores.
You cannot purchase a pistol grip for Hatsan/Escort shotguns. It is illegal to sell/buy pistol grips for any shotgun mfg. outside of the United States.
chuck Norris
Yes
A pistol grip shotgun, according to the ATF, is rulled as "any other firearm" and the buyer must be 21 or older to purchse..
No
The first known pistol grip shotgun is called a backpacker shotgun, with a shorter barrel, and shorter overall length. This is a very popular version of the shotgun, mostly purchased for home defense.
20 and up
100-400 or so