Just a comment on the Nylon, I had a friend years ago who's father had one.
We used to take it out and shoot it, a lot!
To my knowledge, that gun had never been cleaned since it was new!
I never knew of it ever jamming or failing to fire.
Just goes to show ya, they don't make 'em like they used to, even the cheapest of guns in those days are better than the "premium" guns today!