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Thread: Help the n00btard find a handguard?

  1. #1
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    Help the n00btard find a handguard?

    Guys, I've been looking for a handguard for a 12.5" build I'm starting to pencil out (the idea is "GL/SSC upper with more modern furniture"), and as I build a spreadsheet and come up dry I thought I'd ask y'all, especially Stickman as a GL/SSC owner if he sees this, for suggestions.

    Looking to the original GL/SSC for inspiration, the RIS II is "FUGGEDABOUTIT!," though supposedly some were built with Middy KAC URX II's over lo-pro CAR gas blocks. The URX *can* be had, but it's getting rare and expensive where I've seen it.

    Things I'm looking for:
    • Hard 11.75-11.78" upper length limit to ensure theoretical suppressor capability just in case SHARE Act does make it through without having HPA stripped out.
    • FSP slot. I haven't found many with this, and most of what few there are are too long.
    • Would prefer seven sides of MLok or Keymod plus top-rail--the only FSP-slots I've found so far are quadrails.

    I suppose I *could* just slap a rail-mount fixed sight on, but I'm partial to integral FSP's for CQB builds. The ideal would be an even longer, wrap-around-post version of Vltor's CASV-EL, but they're not even doing any more of the versions they DID make never mind a one-off custom. Or I could have a machine-shop cut an FSP slot into the top rail of a generic octagon free-float, if I can find one at the right length...

    Anybody know of anything that fits, or am I better off to just suck it up, look for a free-float octagonal at the right length or a URX II and slap on a rail-mount BUIS? (Rail mount would have the advantage of longer sight radius, though...)

    BTW, I found some more info on the GL/SSC: The Marines list the URG as part of the authorized equipment tables for Annual Rifle Training--I don't take this to mean "standard issue" but rather "if you've somehow laid hands on one you can use it to qual." NSN's are 1090-01-D12-0982 (listed in the last ART docs publicly released, which are 2016) for the lo-pro RIS II URG, though it's listed as "12.25" barrel", and somewhere along the way I found the RIS II FSP version of the URG listed as 1090-01-D12-0983. Those might be start points for tracking info down for somebody with inside connections, though none of the NSN search sites I've found come up with anything. They both have TAMCN code SFE09, which maybe some of our Marine members can help make sense of, though my gut guess would be something like "Special Forces Equipment, Fiscal '09."
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  2. #2
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    Any of the 10.75” KAC rails would work, URX 2, 3, 3.1, 4


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  3. #3
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    Quote Originally Posted by Diamondback View Post
    Guys, I've been looking for a handguard for a 12.5" build I'm starting to pencil out (the idea is "GL/SSC upper with more modern furniture"), and as I build a spreadsheet and come up dry I thought I'd ask y'all, especially Stickman as a GL/SSC owner if he sees this, for suggestions.

    Looking to the original GL/SSC for inspiration, the RIS II is "FUGGEDABOUTIT!," though supposedly some were built with Middy KAC URX II's over lo-pro CAR gas blocks. The URX *can* be had, but it's getting rare and expensive where I've seen it.

    Things I'm looking for:
    • Hard 11.75-11.78" upper length limit to ensure theoretical suppressor capability just in case SHARE Act does make it through without having HPA stripped out.
    • FSP slot. I haven't found many with this, and most of what few there are are too long.
    • Would prefer seven sides of MLok or Keymod plus top-rail--the only FSP-slots I've found so far are quadrails.

    I suppose I *could* just slap a rail-mount fixed sight on, but I'm partial to integral FSP's for CQB builds. The ideal would be an even longer, wrap-around-post version of Vltor's CASV-EL, but they're not even doing any more of the versions they DID make never mind a one-off custom. Or I could have a machine-shop cut an FSP slot into the top rail of a generic octagon free-float, if I can find one at the right length...

    Anybody know of anything that fits, or am I better off to just suck it up, look for a free-float octagonal at the right length or a URX II and slap on a rail-mount BUIS? (Rail mount would have the advantage of longer sight radius, though...)

    BTW, I found some more info on the GL/SSC: The Marines list the URG as part of the authorized equipment tables for Annual Rifle Training--I don't take this to mean "standard issue" but rather "if you've somehow laid hands on one you can use it to qual." NSN's are 1090-01-D12-0982 (listed in the last ART docs publicly released, which are 2016) for the lo-pro RIS II URG, though it's listed as "12.25" barrel", and somewhere along the way I found the RIS II FSP version of the URG listed as 1090-01-D12-0983. Those might be start points for tracking info down for somebody with inside connections, though none of the NSN search sites I've found come up with anything. They both have TAMCN code SFE09, which maybe some of our Marine members can help make sense of, though my gut guess would be something like "Special Forces Equipment, Fiscal '09."
    Wow, wall of text requires more coffee.
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  4. #4
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    I would check out the Centurion C4 and BCM Kino.

  5. #5
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    Quote Originally Posted by Mr. Goodtimes View Post
    Any of the 10.75” KAC rails would work, URX 2, 3, 3.1, 4
    Was hoping for something a little longer, and with intermediate positions, but those are on the table.

    Quote Originally Posted by 1168 View Post
    I would check out the Centurion C4 and BCM Kino.
    Interesting URG on the Kino--I always thought it was a Pistol lo-pro with a duimmy CAR FSB, but it looks more like a mini version of most replica Dissipators. Does offer the advantage of a longer sight radius, but I'm not sure the FSB would leave room for a QDSS-NT4. Both on the option list. Thanks, guys; I'll keep looking, and I'm also starting to doodle something out in Sketchup as a possibility.
    <><><><><><><><><><><><><><><><><><><><><><><><>
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  6. #6
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    Quote Originally Posted by Diamondback View Post
    Was hoping for something a little longer, and with intermediate positions, but those are on the table.
    What do you mean “with intermediate positions”? With a 12.5 in Barrel the longest rail your going to be able to utilize and still leave room for a can is an 11” rail. With a 10.75” URX that means you’re only losing .25” of rail space, which translates into absolutely nothing in the real world.


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  7. #7
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    Mr. GT, by "intermediate" I had meant the slants in addition to the quadrants--I don't even need hopefully the full eight sides, but I really prefer at least the top two like a Geissele MK8, and was hoping the extra 2" of barrel compared to a Mk 18 would let me use something longer than a CASV-EL. (Right now, as a left-hander, the winning gear layout for my hand seems to be AFG bottom, thumbrest and bright light front of right rail, laser top, tape for laser top-right or rear right, low-power light top-left. Not conventional, may not work for everybody, but seems to fit me.)
    <><><><><><><><><><><><><><><><><><><><><><><><>
    Ye best start believin' in Orwellian Dystopias, mateys... yer LIVIN' in one!--after Capt. Hector Barbossa
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  8. #8
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    Quote Originally Posted by Diamondback View Post
    Mr. GT, by "intermediate" I had meant the slants in addition to the quadrants--I don't even need hopefully the full eight sides, but I really prefer at least the top two like a Geissele MK8, and was hoping the extra 2" of barrel compared to a Mk 18 would let me use something longer than a CASV-EL. (Right now, as a left-hander, the winning gear layout for my hand seems to be AFG bottom, thumbrest and bright light front of right rail, laser top, tape for laser top-right or rear right, low-power light top-left. Not conventional, may not work for everybody, but seems to fit me.)
    URX 4 has eight sides.


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  9. #9
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    Quote Originally Posted by Diamondback View Post
    Things I'm looking for:
    • [*]Hard 11.75-11.78" upper length limit to ensure theoretical suppressor capability just in case SHARE Act does make it through without having HPA stripped out.
    • FSP slot. I haven't found many with this, and most of what few there are are too long.
    • Would prefer seven sides of MLok or Keymod plus top-rail--the only FSP-slots I've found so far are quadrails.
    AFAIK (and I'm pretty sure- I just ran around the internet looking for alternatives to the DD FSP rail) you're not going to find anything like that on the current market, aside from machining one yourself.
    Only FSP-cutout stuff I've seen are either full 12" rails, or 9" for mid-gas with side extensions.
    I'll be honest, I would like to see a 14" FSP cutout for Midlength gas though.... Dear rail manufacturers, I've been a very good boy this year....

    ........Anybody know of anything that fits, or am I better off to just suck it up, look for a free-float octagonal at the right length or a URX II and slap on a rail-mount BUIS? (Rail mount would have the advantage of longer sight radius, though...)
    Yes.
    Do that, make life simple, save hassle, be happy. If it wasn't working well for folks that do this for a living, there'd be a product on market by now to fix it...
    Also, make sure you mount a folding front BUIS backward so you can be super high speed.
    "Once we get some iron in our souls, we'll get some iron in our hands..."

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  10. #10
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    Quote Originally Posted by Jellybean View Post
    AFAIK (and I'm pretty sure- I just ran around the internet looking for alternatives to the DD FSP rail) you're not going to find anything like that on the current market, aside from machining one yourself.
    Only FSP-cutout stuff I've seen are either full 12" rails, or 9" for mid-gas with side extensions.
    I'll be honest, I would like to see a 14" FSP cutout for Midlength gas though.... Dear rail manufacturers, I've been a very good boy this year....
    I'm actually starting to play around in Sketchup and AutoCAD (well, DraftSight, similar package) trying to design a "modular rail"--the idea is the top-rail is a separate piece, the bottom starts as a pistol-length then you just twist on extension modules and an endcap for whatever you want--top rail screws onto crossbeams on each module. Thinking each extension should be two M-Lok slots for a rough-draft design... maybe go to fixed extension lengths (Pistol->Carbine, CAR->Ext CAR, Ext CAR->Mid, Mid->Rifle for example) and then maybe have one, two and three-slot extenders for "special needs" custom builds.



    Yes.
    Do that, make life simple, save hassle, be happy. If it wasn't working well for folks that do this for a living, there'd be a product on market by now to fix it...
    Also, make sure you mount a folding front BUIS backward so you can be super high speed.
    LOL, ain't no way yer ever gonna make a Tactical Newman (seriously, remember the dude who the Spitter ate in Jurassic Park? I could pass for his twin except a hundred pounds lighter) into High-Speed Low-Drag... I just like to start with proven milspec configurations for my build plans, departing from them only where law, parts availability, intended-operator biomechanics or new purpose require it.
    <><><><><><><><><><><><><><><><><><><><><><><><>
    Ye best start believin' in Orwellian Dystopias, mateys... yer LIVIN' in one!--after Capt. Hector Barbossa
    Psalms 109:8, 43:1
    LIFE MEMBER - NRA & SAF; FPC MEMBER Not employed or sponsored by any manufacturer, distributor or retailer.

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