No
No
yes
Yes it should fit the frame not sure if tank will fit as the 91 barrel and head are bigger
At this time no,there are not any available.You could have a model 1300 slug barrel redone and have the gas ports added to this barrel.Then it will work fine in your model 1400 Winchester shotgun.
Slug barrels were not made for auto 5's until 1962. These newer barrels will work, but need to be fitted. You may find a slug barrel for a 16ga on gunbroker.com either Belgian or Japanese, but you will need a qualified gunsmith to fit it to your gun.
Mossberg 1000 barrels will fit the Smith & Wesson 1000 Super 12 only !!
Yes it is a direct fit.
It will fit on the frame but the action will not function with 3 inch shells.
no a 250r motor will not fit in a 200x frame but it will fit in a 250r frame
You will need a slide/ barrel bushing that will fit the barrel you want to install.
A PMI razzor barrel (spyder thread) will fit your barrel needs. You know it will fit if it is "spyder" threaded.