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Rifles, Reloading, Optics, Equipment
AR15/10 Rifles
Aero Precison AR10 issue
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<blockquote data-quote="Darryle" data-source="post: 2665907" data-attributes="member: 109917"><p>I rarely use an adjustable gas block, I tune using a heavy buffer and heavier spring. Why restrict the one thing that the rifle needs to properly function.</p><p></p><p>Pull the buffer and spring out, replace the buffer, with the upper removed, place the BCG on the lower and push it back into the buffer tube, measure between the bolt catch and the face of the bolt, you should have 5/16" - 3/8" between the two. </p><p></p><p>If you don't, measure the buffer length, measure the buffer spring length, these vary from their smaller AR-15 counterparts.</p><p></p><p>I am assuming it has a carbine butt stock/buffer setup. Measure the internal buffer tube depth from the retainer pin, the 308 is deeper, I don't have my cheat sheet in front of me, for the exact depths.</p><p></p><p><a href="https://www.genesisarms.com/single-post/2018/04/06/understand-the-recoil" target="_blank">Understanding 308 AR buffer system</a></p><p></p><p>The AR10 uses a shorter buffer, lighter too, like 3oz. I run a 5.8oz buffer in one 308 and nearly 8oz in the 6.5 Creedmoor AR.</p><p></p><p>If you get the correct distance between the face of the catch and the bolt, your cyclic rate is too fast and your rifle isn't capable of keeping up, the catch or magazine isn't fast enough to push the catch or ammo up into the path of the BCG before it has passed.</p></blockquote><p></p>
[QUOTE="Darryle, post: 2665907, member: 109917"] I rarely use an adjustable gas block, I tune using a heavy buffer and heavier spring. Why restrict the one thing that the rifle needs to properly function. Pull the buffer and spring out, replace the buffer, with the upper removed, place the BCG on the lower and push it back into the buffer tube, measure between the bolt catch and the face of the bolt, you should have 5/16" - 3/8" between the two. If you don't, measure the buffer length, measure the buffer spring length, these vary from their smaller AR-15 counterparts. I am assuming it has a carbine butt stock/buffer setup. Measure the internal buffer tube depth from the retainer pin, the 308 is deeper, I don't have my cheat sheet in front of me, for the exact depths. [URL='https://www.genesisarms.com/single-post/2018/04/06/understand-the-recoil']Understanding 308 AR buffer system[/URL] The AR10 uses a shorter buffer, lighter too, like 3oz. I run a 5.8oz buffer in one 308 and nearly 8oz in the 6.5 Creedmoor AR. If you get the correct distance between the face of the catch and the bolt, your cyclic rate is too fast and your rifle isn't capable of keeping up, the catch or magazine isn't fast enough to push the catch or ammo up into the path of the BCG before it has passed. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
AR15/10 Rifles
Aero Precison AR10 issue
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