Hello my fellow 1911 aficionados! New to the forum, not new to 1911s.
I recently bought new a Tac Ultra FS HC in 10mm. Only had the chance to shoot about 75rds out of it untill the magazine catch spring and locking pin made a jump for it at the range

As expected from the research I've done the factory mags (MecGar 40s&w I think) were not so compatible, so I found them difficult to seat especially loaded with 16rds of 200g 10mm. So I admit I'm a sinner, I would practice loading before the range and I was slamming on them a bit. Gun shot beautiful minus a few FTFs (again to be expected apparently as a magazine issue.) Then when I hand it to my buddy and give him a mag and tell him "slam it in there" it wouldn't lock in. He handed it back and I noticed the magazine release/catch assembly was free floating. I thought "well that's not right" and then noticed the locking pin and spring were MIA. Needless to say I hunted for them in the snow for longer I care to admit.. Anyway, I already ordered a new spring and locking pin for a whopping $7 and am optimistic of them working in my new Rock Island despite RIA being mostly mil spec, correct? I have another Philippino made Cimmeron 1911 A1 (also metric for some parts I assume) and have swapped a few parts with no issues.
My question is this. What caused this to happen? Was it me slamming the mag in just a few times like an amateur? I would expect magazine damage before anything, splitting the lips and whatnot. Also I'd like to know if this has happened to anyone else. I've looked around for a bit and heard of it happening on some Kimbers which was surprising.
Apologies for the novel and I also would appreciate any other input for other common issues with these, including the common FTF and the brass hitting the slide. Thank you
