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Thread: LWRC 10.5, or LMT 10.5 upper?

  1. #41
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    My vote is for the LMT over the LWRC.

    For those of you who run an LMT 10.5", what buffer do you use (when shooting unsuppressed)?

    "Addressing the problem of shootings by ban or confiscation of non-criminal's guns is like addressing the problem of rape by chopping off the Johnson of everyone who DIDN't rape anyone while not only leaving the rapists' equipment intact, but giving them free viagra to boot." --Me

  2. #42
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    I have an H buffer in my work gun an Anvil Arms FA lower with an LMT 10.5 upper. My personal gun is a factory LMT SBR, it came with a standard carbine buffer. Both bave run 100% for 1200-1500 rounds each. I spoke to LMT by email and they suggested the heavest buffer you could run w/good reliability. I plan to get another H buffer for my gun.

    Quote Originally Posted by winfield813@yahoo.com View Post
    My vote is for the LMT over the LWRC.

    For those of you who run an LMT 10.5", what buffer do you use (when shooting unsuppressed)?
    "Real men have always needed to know what time it is so they are at the airfield on time, pumping rounds into savages at the right time, etc. Being able to see such in the dark while light weights were comfy in bed without using a light required luminous material." -Originally Posted by ramairthree

  3. #43
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    i run a carbine buffer in my 10.5 LMT. Never had a problem with it and I love the gun..........

  4. #44
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    Great guns! I was confused at first by the suggestion. If an H buffer is better why sell it wirh a standard buffer?

    Quote Originally Posted by spanky4888 View Post
    i run a carbine buffer in my 10.5 LMT. Never had a problem with it and I love the gun..........
    "Real men have always needed to know what time it is so they are at the airfield on time, pumping rounds into savages at the right time, etc. Being able to see such in the dark while light weights were comfy in bed without using a light required luminous material." -Originally Posted by ramairthree

  5. #45
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    Quote Originally Posted by winfield813@yahoo.com View Post
    My vote is for the LMT over the LWRC.

    For those of you who run an LMT 10.5", what buffer do you use (when shooting unsuppressed)?
    I have a complete LMT MK18 (Upper, Lower, BCG), so I run an LMT M16 bolt carrier in the weapon. I use this along with an H buffer with Wolf and PMC, I use an H2 with everything else. I tried an H3 once and it ran well with Winchester M855, but not with any .223 ammo. Honestly I think it would run just fine with an H2 and Wolf and PMC, but I swap out the buffer anyway. I have yet to see any stoppages and I have well over 1000 rounds out of my upper, probably closer to 2000 rounds, and it has not yet been cleaned,only lubed. I really love this little rifle.
    Last edited by decodeddiesel; 09-14-10 at 14:32.

  6. #46
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    Of the two choices you offered I would take the LMT.

    As much as I would like to be, I'm just not a piston AR fan. Running cooler and cleaning easier are great, but I still want to see one hold up long term without carrier tilt or other problems. Take the cost versus a DI gun and availability of spare parts into consideration, and it's a tough pill to swallow for me.

    All of that being said... I would choose an 11.5" BCM upper over both of them. I can't remember who (Pat or LAV maybe) had a post a while back explaining the dwell time differences between the 10.5" and 11.5" barrel uppers, and the effect it could have on reliability. That is the reason I would go 11.5". The reason I chose BCM is because they put out an incredible product, and Paul is a stand up guy that is great to deal with. Throw in the fact that NOBODY beats them in dollar for dollar value, and it makes the decision simple (for me).

    Sorry to hi jack your thread with a little bit of fact and a lot of my opinions. Hopefully it was at least of some value.

    Jay

  7. #47
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    really depends on how you are going to be shooting it. Full auto unsuppressed will keep going no matter how many beta C mags you push through a piston, where as a DI gas tube will fail after about 250 to 300 rounds, but who will shoot the rifle practically that way anyways?

    If your shooting semi go with a DI as you won't really get to reap the benefits with a piston system. When using a suppressor you will not really notice a difference in performance as back pressure from the suppressor blows crap back onto the bolt as a DI system would do.


    I own both and love both.

    So over all, piston for full auto and DI for semi.

    I've also noticed that the piston system tends to push through the grim a little better when suppressed but no real noticeable difference.

  8. #48
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    Quote Originally Posted by jcote258 View Post
    really depends on how you are going to be shooting it. Full auto unsuppressed will keep going no matter how many beta C mags you push through a piston, where as a DI gas tube will fail after about 250 to 300 rounds, but who will shoot the rifle practically that way anyways?

    If your shooting semi go with a DI as you won't really get to reap the benefits with a piston system. When using a suppressor you will not really notice a difference in performance as back pressure from the suppressor blows crap back onto the bolt as a DI system would do.


    I own both and love both.

    So over all, piston for full auto and DI for semi.

    I've also noticed that the piston system tends to push through the grim a little better when suppressed but no real noticeable difference.
    Do you have empirical evidence to support this claim?

  9. #49
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    Jcote, doesn't the following video obviate your 250-300 rd gas-tube claim?
    http://www.youtube.com/watch?v=fWAs4...layer_embedded

    "Addressing the problem of shootings by ban or confiscation of non-criminal's guns is like addressing the problem of rape by chopping off the Johnson of everyone who DIDN't rape anyone while not only leaving the rapists' equipment intact, but giving them free viagra to boot." --Me

  10. #50
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    Quote Originally Posted by decodeddiesel View Post
    Do you have empirical evidence to support this claim?
    Sure, just from shooting both in a full auto/select fire setting. Unsuppressed, a piston will keep a majority of the grim out of the tight tolerant upper receiver also known as the not shitting where you eat saying, where as the DI sprays carbon into the upper receiver and buffer tube. This is obvious and nothing new here. When shooting suppressed full auto either piston or DI, back pressure from the suppressor blows back over the bolt once disengaged and leaves "streaks" of carbon all over the side of the BCG. Also on clean up, carbon from the piston rifle made its way into the buffer tube, lower receiver, and optics.

    After about 500 rounds of shooting select fire with a suppressor, the piston showed a slower cyclic ROF and you could hear the BCG "grinding" in the upper receiver from the carbon replacing lubricant but continued to fire in semi.

    The DI weapon also began to show the same symptoms but only after about 250 to 300 rounds. Where carbon blows back the BCG and back pressure release into the upper receiver, is seems you get almost twice as much carbon in the upper receiver than piston system. Does this make a DI system inferior? Absolutely not, the DI system is tested proven system and continues to perform, hence the still current use in current military.

    One of the guys that tunes weapon systems (polished triggers, custom machining, ect..) swears by the DI if running full auto, I personally like piston. Both are great weapons, DI has a better chance of becoming up and running if failure is evident for parts reason where as failure is only a matter of being made by man so its not a matter of if but more a matter of when. Personal preference is bottom line, and back to the topic, save your money and keep the 11.5, my 10.5 (piston and DI) are fun as hell but you won't notice any gain with an inch. Take care.

    Jon

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