Regarding the latest assessment of your pistol... if it was mine I'd give it a full detail strip... right down to the little parts... and give it a good cleaning inside. It may be some grit/grease inside the workings causing the trigger to stick.
A good cleaning on detail strip may reveal this. Then reassemble and check the parts fit. Norcs aren't particularly finished well in the inside. Maybe yours has a couple burrs here & there that may need to be smoothed out. Could be the cause of the sticking trigger.
Then reassemble with a light oiling. Back to the range for function testing.
Mag not dropping free will be the magazine. Slide only locking only 1 out of 10 on last shot maybe the slide release if it's doing that will all mags or maybe the mag follower if only on one mag. Ejecting brass catching in slide can be over-strength recoils spring +/or under power ammo. Or slide is catching in it's movement. [Check for slide fit/function on detail strip].
A good cleaning on detail strip may reveal this. Then reassemble and check the parts fit. Norcs aren't particularly finished well in the inside. Maybe yours has a couple burrs here & there that may need to be smoothed out. Could be the cause of the sticking trigger.
Then reassemble with a light oiling. Back to the range for function testing.
Mag not dropping free will be the magazine. Slide only locking only 1 out of 10 on last shot maybe the slide release if it's doing that will all mags or maybe the mag follower if only on one mag. Ejecting brass catching in slide can be over-strength recoils spring +/or under power ammo. Or slide is catching in it's movement. [Check for slide fit/function on detail strip].


















































