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Posted: 4/20/2005 10:29:28 PM EDT
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Ok, i just built my first AR a month ago. This past weekend, I took it out and fired it. I love the feel of it, but the trigger just pissed me off so much. The receiver is a DPMS, with a DPMS parts kits. The problem I would fire a round, and the riffle will cycle. But when I go to fire the next round, the trigger won’t do anything. So I remove my finger from the trigger area, basically putting it straight out, and I can hear a click. I check the trigger and it fires another round. Again, cycles, but pulling the trigger again won’t do anything. This time when i remove my finger, I look at the trigger, and see it jump forward when I hear the click. I’m going to take the trigger group apart this weekend, but I need some advice on what to look for, or should I just buy some new trigger components??? |
| That is way semi autos are supposed to work. After you pull the trigger the deselector grabs and holds the hammer so that it cannot hit the firing pin until the trigger is released. Once released the hammer then rests on the trigger sear so that it can be fired again. |
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i guess i didnt explain it well enough. There is seriously a second delay after taking my finger off the trigger before it releases. I have fired AR's alot, but have never seen this problem. It seems likes its hanging up on something, and that is stopping it from releasing. Firing as fast as i can move my finger is impossible, let alone bump firing. |
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I just installed a RRA National match 2 stage trigger group and had the exact same problem. My fix: I punched out the pins again and removed the group. Then I cleaned the holes in the hammer and trigger and rubbed CLP on the pins. I got them squeaky clean inside and out reinstalled everything and now trigger works like a champ. Edit to add This was so simple to do. Just a small hammer and a 1/8 inch punch. You will be up and running in less than 15 min. |
| Bigedmond, I just had the same problem. I built my rifle on Monday and Friday I took it out to the range for the first time. After a shot the trigger would not reset for the next shot. If I nudged the trigger from the back it would reset and be ready for the next shot. This happened about 75% of the time. It seemed to only happen on the first 20-some-odd shots of a 30 round mag but not on the final 7 or 8. I'm not suggesting a cause-effect here. This is probably just coincidence but I thought it was interesting. I haven't had a chance to try anything but if I find something that works for me I'll post. |
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Two places to check, First is the disco/hammer sears ends, then can have end burs. The second place is the end of C slots on the trigger. A bur here leads to binding on the trigger to the trigger pin, and on a new receiver, the tight rit of the pin in the receiver hole do not allow the pin to freely rotate (delay return). To add, helps to flush the parts with a coat of clp to make sure that they are lubed, and that any milling chippings/crap are flushed from the parts before installing them. |
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I checked my trigger parts and they seem to be clean, free of foreign matter, and without burrs. After some tinkering and dry firing hatIt seems natural to me to say that there is simply too much metal on the disconnector or hammer hook but with this being my first AR and me not being a gunsmith I am not so confident. Also being that this requires just a slight nudge I wonder if a heavier spring might help out. If so then which one? The trigger spring? Then you'd have a heavier trigger. Perhaps a lighter disconnector spring? I would love to hear everyone's thoughts on this. I know there is a lot of collective knowledge in this forum. Tony |
I had the same reset problem with my RRA NM 2 stage. 300 rnds later, it works like it should. little bit of roughness is all it is. |
That's what I said  Smooth that interface or shoot it in.
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