I traded a few boxes of ammo for this Auto Ordnance ZG-51 Pitbull 1911.
My buddy that I traded it from said he had issues with it, including the slide locking back after each round. My research shows that this particular model is know for having issues. (And I knew this before trading for it.)
I had a hard time trying to find out what spring kit to get for it. I contacted a couple places including BHSpringSolutions but never heard back from them.
I ended up getting a Wilson Combat 1911 Officer's spring kit.
It appears to be firing okay now. Although, I only put about 10 rounds through it because that's all I had.
I replaced the recoil spring (18.5#) and the firing pin spring. The firing pin spring that was in there previously was in backwards. I don't know how significant an issue that was
Also, I completely disassembled it and found a few other issues. The barrel bushing was misshaped and had rough dings and gouges in it. I reshaped it as best as I could and smoothed out the gouges.
The inside part of the grip safety also had deep gouges in it. I smoothed those out.
I fired the pistol a couple times before I owned it when buddy buddy brought it to the range. The checkering on the mainspring housing was painful on the palm of the hand after firing. Now, after the changes I made, that is not an issue. Is this because I used a more accurate recoil spring? I think my buddy had bought one that wasn't correct and cut it to what he thought was right.
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