I have a new to me Colt Sporter Target AR-15. It's very old, a pre-94 ban, but by the lack of visible wear on it I don't think it was shot much at all before I owned it.
I have noticed that, once the rifle has become dirty with say 150+ rounds, the trigger starts to hesitate to return to the forward position. Occasionally it won't return at all and I have to push it forward with my finger, at which point I get a very positive click and it's ready to fire. It's a stock Colt single stage trigger.
Cleaning the engagement surfaces of the trigger and disconnector resolves the problem until the rifle is dirty again. I am assuming that a bit of roughness on this interface is causing the problem. Is that correct?
If so, what's the best way to correct this problem? Is emory paper by hand the best solution? Or using a felt polishing wheel on a dremel tool?
Advice much appreciated!
I have noticed that, once the rifle has become dirty with say 150+ rounds, the trigger starts to hesitate to return to the forward position. Occasionally it won't return at all and I have to push it forward with my finger, at which point I get a very positive click and it's ready to fire. It's a stock Colt single stage trigger.
Cleaning the engagement surfaces of the trigger and disconnector resolves the problem until the rifle is dirty again. I am assuming that a bit of roughness on this interface is causing the problem. Is that correct?
If so, what's the best way to correct this problem? Is emory paper by hand the best solution? Or using a felt polishing wheel on a dremel tool?
Advice much appreciated!