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The Basics, Starting Out
Semi auto advice needed
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<blockquote data-quote="Turpentine21" data-source="post: 2713673" data-attributes="member: 124909"><p>If his bolt isn't locking back that sounds like undergassed. But there were certain AR 10 mags that weren't necessarily reliable at locking the bolt back. The 4 shot metal mag that came with my DPMS was that way and so were a couple of my Magpuls. If it isn't ejecting due to the bolt not coming back far enough, I would ask aero what their port diameter should be And measure. If that's in spec look at the gas key and then bolt rings and fit. As he may be binding or losing gas there. If he has an adjustable block how does the gun react when the block is opened or closed. Work systematically through each system. There are a lot of variables but they can normally be worked through by process of elimination. </p><p>I've built quite a few Frankenstein builds. Remarkably my most thrown together build done with spare parts, almost nothing came from the same place, runs as well or better than anything else I have. Except for the AK, and we feed it steel cased garbage.</p><p>Keep us posted, it's a learning opportunity. Im glad to help as I'm sure some of the others here are.</p></blockquote><p></p>
[QUOTE="Turpentine21, post: 2713673, member: 124909"] If his bolt isn’t locking back that sounds like undergassed. But there were certain AR 10 mags that weren’t necessarily reliable at locking the bolt back. The 4 shot metal mag that came with my DPMS was that way and so were a couple of my Magpuls. If it isn’t ejecting due to the bolt not coming back far enough, I would ask aero what their port diameter should be And measure. If that’s in spec look at the gas key and then bolt rings and fit. As he may be binding or losing gas there. If he has an adjustable block how does the gun react when the block is opened or closed. Work systematically through each system. There are a lot of variables but they can normally be worked through by process of elimination. I’ve built quite a few Frankenstein builds. Remarkably my most thrown together build done with spare parts, almost nothing came from the same place, runs as well or better than anything else I have. Except for the AK, and we feed it steel cased garbage. Keep us posted, it’s a learning opportunity. Im glad to help as I’m sure some of the others here are. [/QUOTE]
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The Basics, Starting Out
Semi auto advice needed
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