How I got semi working again on my AWSS M4A1
I've had my AWSS M4A1 for a few months now and recently it's developed a fault when in semi auto. When the trigger is pulled back it fires one round, then when the trigger is released it fires another. After plenty of head scratching I found the problem and this is how I fixed it. Hopefully it might help someone else.
A while ago I fitted a TSC hardened steel hammer and trigger sear. I found that the hardened steel hammer had been wearing the trigger.
This is the wear.
Compare it to a new trigger
So how can I build up the wo