A non NFA would be a pre 1934 machine gun? Correct? And that would be grandfathered without any crap from the Treasury?
My family has a 1926 or so Model 12 Win. that has no safety feature for the pump. That is you can hold the trigger down on the first shot and keep racking it for consecutive firing. Would that be non NFA?
Not trying to hijack a thread, just curious.
All machine guns fall under the NFA. Only those made and registered before May 19, 1986 can be sold among civilians.
Regarding your shotgun, the phenomenon you refer to is called a “slam fire”, where you depress/hold the trigger and cycle the slide, whereupon the gun will fire when the slide is “slammed” forward.
I don’t recommend doing it, as if it ever fires before the breech locks it’d be bad.
To answer your question, it’s not an NFA issue. Indeed, any Ithaca Model 37 pump made before 1974 or so will slam fire. Again, I don’t recommend doing it.
There is no restriction on pumps capable of slam firing. If there were, all the Cowboy action shooters would have to give up their Winchester 97’s. I’ve got a 1938 model 12, and it can do this, but it’s difficult to be accurate, and it really doesn’t save that much time.