these are service guns , so they have heavy triggers on purpose.
I have sold some of the surplus that came in a while back and they have all been good.
I never checked out promags in them, The colt ones are O.K., not hi end , but for the money , they are fine.
When Wholesale sports closed, I was looking for a holster for S-W M19 and 1911's, They had a whole rack full of holsters and they where all 92's for some reason, Uncle mikes.
The only trouble I know about was a broken block, but that is in a gun that was shot with over pressure loads -ie SMG.
For front sights like this , for us old guys , a dab of white paint, than a top coat of pink, red, or whatever and it makes a huge difference