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Thread: Which SBR handguard/rail

  1. #11
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    Are the Geissele mk5 keymod rails still in production?
    “Answer The Bell...” J.W.

  2. #12
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    I put a DD lite II rail on my 11.5", I like it

  3. #13
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    The new Lite IIIs are nice but its a quad rail. I have a Geissele SMR Mk2 9.5 on my 10.5" sbr and I really like it

  4. #14
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    I had a 10" KMR on my 10.3" sbr but it was a little too long for the barrel and wouldn't accept a can. Additionally, I had a gripe that under longer strings of fire, the kmr rail sections would work their way loose, not fall off, but loose. So I picked up a Centurion C4 9" and am a big fan thus far. Very lightweight, easy to put on (bolts onto standard barrel nut, the end) and nice finish. So I'm submitting the C4 into the mix.

  5. #15
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    Quote Originally Posted by inzerous View Post
    I had a 10" KMR on my 10.3" sbr but it was a little too long for the barrel and wouldn't accept a can. Additionally, I had a gripe that under longer strings of fire, the kmr rail sections would work their way loose, not fall off, but loose. So I picked up a Centurion C4 9" and am a big fan thus far. Very lightweight, easy to put on (bolts onto standard barrel nut, the end) and nice finish. So I'm submitting the C4 into the mix.
    "Rail sections?" Are you saying that the rail comes loose in sustained fire? Or are you talking about BCM rail panels?

  6. #16
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    Quote Originally Posted by Hmac View Post
    "Rail sections?" Are you saying that the rail comes loose in sustained fire? Or are you talking about BCM rail panels?
    The rail sections (in my experience) consistently came loose after long strings of fire. The KMR is very secure itself. And I have no experience with the rail panels to comment on those.

  7. #17
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    I have a URX 2.0 on my SBR and I will say it's a night and day difference in weight to the more budget conscious BCM KMR I have on my 9mm. You choice largely depends on what kind of features, weight, and finish you are looking for. I love my URX, but it's a heavy pig, but it does excel in that is has the integral front sight, QD sockets, and being M203 compatible (though I'm sure most of us this doesn't matter).





    Quote Originally Posted by Ryno12 View Post
    Aluminum barrel nut that requires Loctite & a special, not included, wrench that is priced at a typical KAC price point.
    That was enough to turn me off.
    FYI, there are aftermarket URX wrenches out there that are less than half the price of the KAC offerings.
    Last edited by unclemoak; 01-18-15 at 16:18.

  8. #18
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    Thanks for all the feedback. Other than a slight price difference, how do the KAC URX4s compare to the KMRs? Also, I have a feeling the any keymod rail (as well as any othe rail would) heats up pretty quick under lots of shooting, do you guys feel that gloves are enough to keep hands protected, or are some covers/panels recommended?
    "Who are the militia? Are they not ourselves? Is it feared, then, that we shall turn our arms each man against his own bosom? Congress shall have no power to disarm the militia. Their swords, and every other terrible implement of the soldier, are the birth-right of an American ... The unlimited power of the sword is not in the hands of either the federal or state governments, but where I trust in God it will ever remain, in the hands of the People."
    — Tench Coxe, 1788.

  9. #19
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    When I changed my SBR's rail from a DD Lite to an NSR, I was surprised how hot it got. Panels take care of most of the heat discomfort. I recently built a rifle with a KMR. Love that rail, but wow! that one feels like it gets even hotter. Panels plus gloves for that one.

    I don't much care for Noveske's rail panels. I put the Midwest on the KMR and I really like those. Vastly superior IMHO from a security standpoint, but they don't appear to mitigate the heat any better.

  10. #20
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    Quote Originally Posted by inzerous View Post
    The rail sections (in my experience) consistently came loose after long strings of fire. The KMR is very secure itself. And I have no experience with the rail panels to comment on those.
    There was one other guy here who reported something similar a while back. Seems to be the exception. When I mount something, I'll wipe off any oil or grease off the fastener and put on some VibraTite... same as any pic rail attachment.
    "You people have too much time on your hands." - scottryan

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