Hey all, it seems people have stopped adding input to my thread. that's okay. I intend to follow up with all the details I have until this pistol works flawlessly for future reference for others.
I ordered a wilson combat slide release from brownells and it arrived today.
I put in all 4 mags that I have (2 norc 7 round and 2 Dlask 8 round) with the original slide release and cycled the pistol by hand a bunch of times. It was frequently failing to lock back with an empty mag. At least 50% now.
Then I installed the wilson combat slide release and cycled the slide until I got bored of playing with the pistol (like 15 minutes of just cycling the damn thing). I tried all 4 mags. Never once had the slide fail to lock back.
I think this was the culprit but I will follow up with a range report in the next few days when I have a chance to fire the pistol.
So, quick recap of the thread for those that dont like reading
Gov't style Dominion arms (norinco) 1911. The slide is failing to lock open after the last round frequently.
Many people suggest cleaning and oiling. I am former CAF, I keep my stuff clean, lol. This is not the problem
Others suggest mags, seems logical
Ordered and tried Dlask 8 round mags, no difference (actually seems worse, despite the mags being of incredible quality and design compared to the norinco ones)
Ordered a wilson combat slide release and installed. Slide has not failed to lock open since the install, no rounds fired yet though, will update soon.