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Introducing Myself, would like some advice on my gun build


Ozzy bear

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Hi, I have recently purchased. A polymer 80. Warthog,buffer y build and shoot kit. I am brand new to self building and totally turned on to the experience!! Its the funniest puzzle I've ever put together.  I am having some serious issues with my build though. I got it all put together, and noticed that when I loaded the clip the bolt was not going all the way back behind the bullet so there was no way the gun would feed properly. I ordered a new heavy buffer from polymer 80. It feeds awsone now. Then I took it to the range. I shoot, and on the second bullet click... No boom. I asked a couple people what it could b. Showed them the dented primers. They said file the firing pin so it hits deeper. Did that. Still didn't work. I was shooting with a kid who was on military leave. He told me that his gun did the same thing back at the base, and he had the armory fix it. They put the right buffer and spring in it...  I looked into that and I think that I need a buffer tube for an ar 10. And they gave me one for a 15. I thought the short buffer would fix this. But I think I need the right buffer tube, spring, and buffer.  I would b glad to post pics, video of function, anything to get my puzzle working.

      Thanks

                    Ozzybear

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Howdy from the border.  Just got a polymer 80 for one of my AR-15s as an experiment.  Don't know when I will get to it.  You might consider providing the folks here with a bit more information on your build, including pictures, and some folks may be able to help.

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I bought the upper in the kit. Yes I built it .   I know ithas mil spec parts. A Sodom barrel I will look up what company the bolt carrier is made by.  But I trulythink my issue is simple. I also built a second upper and both have same problem. Which leads me tword. Buffertube,buffer spring issue. And when a man from the military says look at this before anything else. I tend to listen

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34 minutes ago, Ozzy bear said:

No. I built the whole thing. 

Sounds like you could either be

1. Under gassed--- possibly a misaligned gas block and or blockage or a severe leak. (your pic looks like it has the correct length tube, allowing full penetration into the gas key.)

2. Possibly an incorrect Buffer tube, buffer, and or recoil spring ?

Is the rifle picking up and chambering the second round? or just not coming back far enough to grab a round?

Also what trigger is installed?

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When I put the gas tube on and the gas block I plugged  the barrel with my finger. And blew through it to make sure it was correct.  In my earlier post I mentioned. That I baleave I have the wrong buffer tube. Am looking to figure that out and where and what I need to fix it.

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If in brain farting please let me no. I will take corrective criticism. Loll as long as she starts working.  Everyone that is helping me. Thank u greatly for your time. Every inch of this build I am being educated.  Didn't think the build was gonna b easy, but didn't think it was gonna b difficult , in patiently, and diligently. Working on it.

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When that bolt slams home and chambers a round it is very common to see a "light primer strike" just from the firing pin getting thrown into the primer from the bolt slamming shut.

when you  fire a round and then it picks up and chambers another is your hammer getting reset?

 

edit:  Also can you manually lock your bolt back on the bolt catch?  Does one round fired on an empty mag lock back the bolt?

Edited by Toolndie7
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It is only catching some time and feels like it is binding up the spring the last half and three quarters or half an inch, which is why I think I need the 7 and a half to 8 inch tube.  And I think it is. Resting the hammer. But maybe not all the way. And I'm hearing a light click, when I pull trigger.

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