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The Range
Rifle & Shotgun Discussion
Frankenstein AR-15 troubleshooting question
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<blockquote data-quote="sparkstable" data-source="post: 3827723" data-attributes="member: 6371"><p>My personal feeling was essentially "limp wristing." I am absorbing some energy from the recoil that isn't happening when rested. I try to lean into it a bit so I can keep my weight forward into the gun rather than "shelfing" it on my chest. No issues with my MP15.</p><p></p><p>I have a stock milspec buffer and spring I can try. Perhaps that will allow the bolt to keep traveling even if I am taking some of the shock into my body. </p><p></p><p>I did pull the charging handle/bolt back with an empty mag. It locks fine.</p><p></p><p>When assembled my friend (the more experienced of us and who had done this before, just not an 11.5") used a bore scope to check gas block alignment. </p><p></p><p>Have also been told that the gas key may be too large allowing too much gas out into the chamber (this was from a rather grumpy smith at the range/store I was at). He took a quick look and said the key was large and I should toss it and get a new one. </p><p></p><p>I can try stock bcg from the mp15 as well to see if that makes a difference.</p><p></p><p>Thanks for the input everyone. It is nice to have some options to go down before getting to total reassembly on the gas system. Once I get a chance to test the buffer and bcg I will report back what I find.</p></blockquote><p></p>
[QUOTE="sparkstable, post: 3827723, member: 6371"] My personal feeling was essentially "limp wristing." I am absorbing some energy from the recoil that isn't happening when rested. I try to lean into it a bit so I can keep my weight forward into the gun rather than "shelfing" it on my chest. No issues with my MP15. I have a stock milspec buffer and spring I can try. Perhaps that will allow the bolt to keep traveling even if I am taking some of the shock into my body. I did pull the charging handle/bolt back with an empty mag. It locks fine. When assembled my friend (the more experienced of us and who had done this before, just not an 11.5") used a bore scope to check gas block alignment. Have also been told that the gas key may be too large allowing too much gas out into the chamber (this was from a rather grumpy smith at the range/store I was at). He took a quick look and said the key was large and I should toss it and get a new one. I can try stock bcg from the mp15 as well to see if that makes a difference. Thanks for the input everyone. It is nice to have some options to go down before getting to total reassembly on the gas system. Once I get a chance to test the buffer and bcg I will report back what I find. [/QUOTE]
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Frankenstein AR-15 troubleshooting question
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