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February 22nd, 2010, 02:48 PM #1
AR-15 trigger won't reset (UPDATED)
I just took my AR-15 to the range for the first time to make sure that everything worked.
It didn't.
The first round worked beautifully. The bolt cycled, the brass was ejected, the next round was chambered and everything looked good. Then I pulled the trigger.
Nothing. The safety might as well have been on, because there was absolutely no movement in the trigger at all. I flipped it to safe and then I heard a "twang." I flipped it back to fire and the gun fired.
So now after every single round I have to cycle the selector from fire to safe to fire and then it works. Each time it goes from fire to safe there's a small twang (or snap) and the trigger is free to fire again.Since I put the thing together I figured I screwed something up.
Any ideas on what might be the cause? What should I look for? More importantly, how do I fix it?
Thanks in advance.
Update: It arrived at Del-Ton this morning and I just got an e-mail saying it's shipping back out tomorrow. Hopefully by Thursday I'll have it back and know if they replaced the lower or it if was the trigger itself that was out of spec.
So at least Del-Ton has quick turnaround time for RMA's. The only negative so far is that customers have to pay to ship defective parts back.Last edited by lexnaturalis; March 1st, 2010 at 05:22 PM.
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February 22nd, 2010, 04:47 PM #2
Re: AR-15 trigger won't reset
I think the problem you are having is the disconector needs timed watch the videos on this page http://www.jprifles.com/1.4.8.1_fc.php
Last edited by winchester70; February 22nd, 2010 at 04:53 PM.
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February 22nd, 2010, 05:09 PM #3
Re: AR-15 trigger won't reset
When you are called a racist, it just means you won an argument with an Obama supporter.
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February 22nd, 2010, 05:14 PM #4
Re: AR-15 trigger won't reset
Did you build the lower yourself?
"Having a gun and thinking you are armed is like having a piano and thinking you are a musician" Col. Jeff Cooper (U.S.M.C. Ret.)
Speed is fine, Accuracy is final
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February 22nd, 2010, 05:17 PM #5
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February 22nd, 2010, 05:19 PM #6
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February 22nd, 2010, 06:02 PM #7
Re: AR-15 trigger won't reset
I had the same thing happen on the AR i built. I don't have a belt sander either so i put the disconnector in a vise and used a fine file then polished with jewelers rouge on a piece of leather. It did not take much filling at all if you take the upper off and watch the hammer catch on the disconnector you can see about how much needs removed. Follow the video it is very simple.
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February 22nd, 2010, 06:02 PM #8
Re: AR-15 trigger won't reset
Follow-up question: After watching a few more videos I'm concerned that my trigger is too tight. When I watch the Brownells video on how to build an AR-15 the trigger seems to drop nicely into the lower receiver, whereas mine was a bit tight. I had to push a bit hard to push it down into the receiver. The trigger didn't move freely forward or back. There was a bit of pressure required to do that.
Is that normal or is there potentially a problem with the trigger itself?
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February 22nd, 2010, 06:07 PM #9
Re: AR-15 trigger won't reset
Mine dropped right in. Are you sure you got all the parts and pieces in the right place?
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February 22nd, 2010, 06:11 PM #10
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