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Thread: Which H buffer for a 20" barrel with collapsible stock?

  1. #41
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    Quote Originally Posted by bp7178 View Post
    Yes it would.

    I have a LMT receiver extension and I'm not a big fan of the dry lube coating they put on it. As of right now it's on the short list of things I need to sell.

    I also think just slapping the heaviest buffer possible is a bad choice. You're trying to balance buffer/spring with the gas system. Everytime you add weight to the reciprocating mass you are changing a few things. You may reduce the felt recoil on the rearward stroke, but now you have a lot of mass going forward, which is also a componet of the recoil you feel. I've tested it with the A5, and I plan on running a few different carbine buffers and see how it all comes out.

    With how soft my 16" intermediate shoots, I'm actually thinking of trying an AR15 bolt carrier, as opposed to the FA M16 one in there now.

    I would suggest buying more than one buffer and trying them out in your rifle, to see how it actually feels, and not depend on Internet advice w/o ever having felt the effects for yourself.

    G&R tactical has CMT buffers for very good prices. They are stamped correctly, unlike the RRA I came across at a local gun store. It was an H2, but didn't have any markings on the face.
    you have an intermediate 16" gun? or is it a midlength? if you truly have an intermediate 16er, then it should be no surprise that it's soft shooting... but either way, why would you ever have a problem with a soft-shooting rifle, so long as it functions? and if your weapon shoots that soft, changing carriers isn't going to offer a perceptible difference.

  2. #42
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    I put a RRA collapsible stock on my Colt 6601 and it runs fine with the standard carbine buffer.

  3. #43
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    you have an intermediate 16" gun? or is it a midlength? if you truly have an intermediate 16er, then it should be no surprise that it's soft shooting... but either way, why would you ever have a problem with a soft-shooting rifle, so long as it functions? and if your weapon shoots that soft, changing carriers isn't going to offer a perceptible difference.
    Yes, it's a 11.5" intermediate gas system on a 16". It's a custom MSTN/Noveske barrel. It's new enough, that I'm not aware of anyone else that has one. Wes Grant had a post on TOS about it under the new products section. I don't know what is ideal with the system until I try it out.

    There is this new trend whereas people want to make things as heavy as possible when it comes to carriers and buffers. I'm not convinced this is at all necessary. There is more than one phase to recoil, and making things heavy addresses only one of them.

    Going to a lighter carrier is something that is popular in competition circles. JP makes ultra light carriers that are designed to be used as such. I don't have an intrest in them, just the idea behind it.

    When I had a extra power carbine spring, the carrier slammed forward with much greater force. The rear movement was light, but the carrier going forward was more noticeable.
    Last edited by bp7178; 03-26-11 at 14:41.

  4. #44
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    Excellent question. Unfortunately my brain cannot retain all that info. However, I believe that I have seen it posted before and it should be around .090.

    Don't quote me.

    Quote Originally Posted by jmart View Post
    What's the proper gas port diameter for a 20" barrel?



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  5. #45
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    Quote Originally Posted by Iraqgunz View Post
    Excellent question. Unfortunately my brain cannot retain all that info. However, I believe that I have seen it posted before and it should be around .090.

    Don't quote me.
    .089-.096

  6. #46
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    I like to think that the Canadians may have put millions of rounds downrange in the last twenty years, in temperature extremes that people here may not have shot in. I like to think that along the way they learned a lot about what buffer they need.

    But hey, couple of guys threw a car buffer in and so far it's working.

  7. #47
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    Quote Originally Posted by RyanB View Post
    I like to think that the Canadians may have put millions of rounds downrange in the last twenty years, in temperature extremes that people here may not have shot in. I like to think that along the way they learned a lot about what buffer they need.

    But hey, couple of guys threw a car buffer in and so far it's working.
    my guess would be that the canadian military is no different than any other military, and that they use whats handed to them, and if it works most of the time, any problems they have get blamed on user error, bad luck, improper maintenance, etc.

    i agree to a degree- if thought was put into it, which it obviously was, then they left the weapon over-gassed, like most military weapons. over-gassed is better than undergassed, when we're talking about limiting common problems.. but that doesn't mean that a different weight won't work better for an individual.

    like markm noted about the above photograph, homeboy canuck's brass is heading out to about 2 o'clock... put an H3 in there, and it'll probably pop out at 3:00-3:30.

  8. #48
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    I understand that the OP made some kind of comment about us pulling the H buffer and spring out of an LMT SOPMOD kit he purchased from us nearly two years ago.

    I just wanted to take a moment and set the record straight. Per LMT, they did NOT start to include the H buffer and carbine spring till 2011!

    Here is the e-mail from them:

    Grant



    We made the change for 2011



    Ryan Johnson

    Sales Representative
    Lewis Machine & Tool Co.
    1305 West 11th Street
    Milan, IL 61264
    Phone: 309.732.9527
    Fax: 309.787.2636
    Email: johnsonr@lmtdefense.com



    C4

  9. #49
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    Quote Originally Posted by VaniB View Post
    Hmmmm......just when I was settling on an H2, you've got me wondering. You seem know something more then folks like this other one-track minded guy who goes to sleep with a Vltor butt at night.

    Ok....if the Canadian C7A2 operates fine on the lighter stuff.....I wonder now if I should use an H3 for the steady diet of 77 grain loads. It makes makes sense ....... assuming that you're correct that the C7A2 does use the H3 buffer. Just curious; how do you know this about a Canadian AR15 variant?

    The issue now is just trying to make the right choice from the start and avoid tossing about $50 bucks on the wrong buffer and the shipping charges.
    dude, can that sarcasm shit right now and stop acting like my 15 yr old when told something he doesn't want to hear. if people are telling you an A5 conversion is the best choice, it's because it is.

    there's nothing wrong with wanting to keep your LMT RE but you asked for help and folks are giving you their best advice. sarcasm and whining is not conducive to folks wanting to give help in the future.

    now, if you're in love with the LMT RE, your best choice is to start with either the H3 or H2 buffer as has been suggested.

    however, if you want the BEST solution, swap out the RE with an A5 kit which includes the RE, spring, and buffer - it was designed to do exactly what you want to do. and it WILL accept your SOPMOD stock if that's what you're in love with, but when fully collapsed will leave a small space between the stock and lock-nut. the VLTOR EMOD will collapse fully on the A5 RE because it is longer but is not necessary.

    good luck...
    never push a wrench...

  10. #50
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    Dude, seriously? Don't use logic in this thread. That would be too easy.

    Quote Originally Posted by ra2bach View Post
    dude, can that sarcasm shit right now and stop acting like my 15 yr old when told something he doesn't want to hear. if people are telling you an A5 conversion is the best choice, it's because it is.

    there's nothing wrong with wanting to keep your LMT RE but you asked for help and folks are giving you their best advice. sarcasm and whining is not conducive to folks wanting to give help in the future.

    now, if you're in love with the LMT RE, your best choice is to start with either the H3 or H2 buffer as has been suggested.

    however, if you want the BEST solution, swap out the RE with an A5 kit which includes the RE, spring, and buffer - it was designed to do exactly what you want to do. and it WILL accept your SOPMOD stock if that's what you're in love with, but when fully collapsed will leave a small space between the stock and lock-nut. the VLTOR EMOD will collapse fully on the A5 RE because it is longer but is not necessary.

    good luck...



    Owner/Instructor at Semper Paratus Arms

    Facebook: https://www.facebook.com/SemperParatusArms/

    Semper Paratus Arms AR15 Armorer Course http://www.semperparatusarms.com/cou...-registration/

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