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Posted: 8/12/2008 12:13:50 PM EDT
| Would a regular H-buffer work well with a 16" upper with a mid-length gas system? If it helps with an M4 gas system, I assume it helps some with the mid-length as well. It will not be too strong a spring, right? I heard that H2, H3, and 9mm buffers can be too much buffer for a mid-length gas system. |
6.8 is a little different from .223 though, I'm more interested how it will run with something like crappy 55gr wolf. |
Thanks! Do you think it improves reliability a little bit or is it just the same as regular buffer in a mid-length? |
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Heavier buffers slow down the action, increasing dwell time, etc for increased reliability and less wear and tear (read: broken extractors) in a carbine gas system. Run whatever works for your middy. Rifle, car or H buffers. The only negative is that going too heavy may slow things down too much to cycle properly with some under-powered ammo. I ran a rifle buffer (w/ A1 stock) in my 14.5" middy with ZERO problems. I'm switching to a H buffer in a collapsible stock but have yet to test it. I don't expect to have any problems with M193 or (somewhat underpowered) Wolf. We'll see. |
I don't have any first hand experience with standard carbine buffers. I bought my stocks as package deals; stock, tube, buffer, and spring. They all came with H buffers. |
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This is some great info- & I have a question- I am trying to get my Ar pistol to run , & I am having failures to extract. I have a RRA Pistol lower & a COLT 11inch upper. Now I know that Colt never made a pistol upper - so this must be a 11inch carbine upper. I have been told to go to a H3 buffer & see what happens.... Do you think that is too heavey or should I go H2..or less.? Thanks |
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If you're having FTE issues I'd start with upgrading your extractor. BCM extractor upgrade BCM extractor upgrade 3 pack I've upgraded all of my bolts. I don't know if I really needed to but none of my rifles have any extracting problems.  |
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I wouldn't go too heavy - you'll start seeing increased incidences of short stroking with anything other than hot loaded ammunition - it's a balance, and especially as the chamber starts to accumulate grime/carbon/etc., then the rearward impulse on the bolt may stop being enough to lock the bolt back, and eventually to load the next round - don't go overboard. H2 is as far as I'd go - I have one for a 14.7" Carbine M4, SEMI carrier, but that's as far as I'm willing to push it. |
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I run a regular buffer in a 10.5 cqb mrp on full auto with a suppressor, and have never had jam or ftf. Just keeps shooting. For what it's worth, I have run over 700 rounds through it without cleaning it. My goal is to see how long it will go with no lube and no cleaning. |
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