[slayerfanx55]

I bought an M16 from a friend for the rails, and front assembly pretty much. The gun was not firing. I opened it up, and there was a random screw in the gears, the anti-reversal latch is broken. I took them out, and now it fires. The only problem is that the trigger stays back when I fire on the semi auto setting. The safety works fine, and so does the auto. What's wrong with it?

 

[suomijorma]

There is no spring on the trigger that would normally pull it back when firing semi-auto. If you replace the spring it should be fine.

 

[slayerfanx55]

There is a spring, and when I fire on full auto it works just fine.

 

[suomijorma]

hmm, that's interesting... My friend had a same kind of problem and the sliding contactor went too far back and I had to glue a piece of cardboard behind the contactor to prevent it from going so far. If that doesn't work, then I'm out of ideas