A 40" barrel produced for the Marlin model 120 12 Ga pump...I have one!
Unable to answer as asked. Is it already a shotgun or will it be built from a virgin receiver?
If it is not marked on the barrel, you should have a gunsmith measure the chamber length.
1901 single barrel shotgun, washingtion
Buy Shotgun. Buy Shotgun.
Yes, it meets the minimum overall length requirements. Since it is a single shot there is no minimum length required for the barrel.
when was the carolina arms 16 gauge single barrel shotgun made
Take it to a gunsmith
How much is a 16 gage single barrel shotgun model 350A Revelation
The users of them.
Provide a detailed description including gauge, barrel length, all markings, overall condition and finish.
I do not personally, but yes, there is a single shot rifle that can have the rifle barrel replaced with a shotgun barrel.