AR Sponsor
Posted: 8/9/2013 7:02:35 AM EDT
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I have built several AR rifles recently and as you all know it was tough to find a stripped lower a few months back.
I took a chance and bought an ATI OMNI stripped polymer lower. I found I have a really cool double tap with this lower. I found a test in this forum where you pull the charge handle back while holding the trigger. The split hair movement later and the hammer releases. I tried the same thing on my other rifles with a whole different result. I will chalk this lesson to you get what you pay for. The DROS fees, shipping and FFL fee cost more than the lower. I see many folks have had good luck with these. I am the unlucky one. |
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A "double tap" is a deliberate intentional firing of two rounds in quick succession. Inadvertent fire of two shots from a disconnector overlap problem is called "doubling".
The parts in question can be tuned by you, or if you're not up to it, a gunsmith, to eliminate the doubling. Making sure the disconnector and spring are properly installed, or just replacing the disconnector also usually works to fix the problem. |
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The problem is likely not the lower but with something in the trigger group (as mentioned above). I created this problem in one of mine by trying to do a polishing "trigger job". Replaced the trigger group with a known good, no problem. Didn't try just replacing the dis-connector, but others have had good results with that.
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