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Posted: 8/23/2003 1:56:19 AM EDT
[#1]
[url]http://www.ar15.com/forums/topic.html?b=3&f=12&t=168068[/url]
[url]http://www.ar15.com/forums/topic.html?b=3&f=19&t=167527[/url] |
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Posted: 8/24/2003 6:09:29 AM EDT
[#2]
THE INTERMEDIATE OR MID-LENGTH GAS SYSTEM IS EXACTLY TWO INCHES LONGER THAN THAT OF THE SHORT OR CARBINE GAS SYSTEM.
PRESENTLY, ONLY TWO REPLACEMENT FORENDS ARE MADE FOR THE INTERMEDIATE GAS SYSTEM: 1. ARMS #58 SIR-M 2. PRECISION REFLEX INC [ PRI ] MID-LENGTH CARBON FIBER FOREND ONE CAN ALWAYS RUN AN INTERMEDIATE LENGTH [ OR CARBINE LENGTH, FOR THAT MATTER ] GAS SYSTEM AND A FULL LENGTH FREE FLOATED FOREND BY UTILIZING A LOW PROFILE GAS BLOCK UNDER THE FOREND. WES GRANT [URL]MSTN.BIZ[/URL] |
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Posted: 8/24/2003 7:04:14 AM EDT
[#3]
Cosmetic.
Short handguards, designed originally for the 10" bbl XM177E1 and carried over to the 14.5" bbl M4 look [i]dorky[/i] on 16" barrels. Moving the front sight out so the barrel looks better requires "mid length" handguards. 18" bbl, which offers nothing a 20" doesn't, can use them as well. -- Chuck |
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Posted: 8/24/2003 8:01:34 AM EDT
[#4]
MSTN, don't forget if free floating isn't necessary, you can just use the Armalite or Cav Arms or other medium length handguards. Plus custom cut free floating tubes and maybe the FIRSH.
I'm not sure what you were saying in your post was meant to reflect that or not. Obviously if they bought the gun from Armalite, they probably would already have those handguards... Just shoot me if I'm not making sense. |
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Posted: 8/24/2003 4:03:32 PM EDT
[#5]
Wes, when was the last time Knights made a "Medium Long" FFRAS?
-Cap'n |
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Posted: 8/24/2003 5:22:54 PM EDT
[#6]
CAP'N,
I DO NOT THINK THE KNIGHT'S MEDIUM-LONG ( LATER REFERRED TO AS THEIR "MEDIUM" ) HAS BEEN MADE IN SOME TIME. WE STILL HAVE SOME IN STOCK WE'D PUT BACK FOR A RAINY DAY. THEY LOOK JUST GREAT ON A 16" BARREL UPPER, IMO. BUT THEY'RE REALLY TOO LONG TO FIT AN UPPER WITH A TRUE INTERMEDIATE LENGTH GAS SYSTEM FRONT SIGHT TOWER. CHUCK, I AGREE WITH YOU. SEE ABOVE, KNIGHT'S MEDIUM LONG AS A COSMETIC REMEDY! SKYHAWK, NOTE THE TERM "REPLACEMENT". YOU'RE CORRECT IN STATING THAT THE STOCK INTERMEDIATE LENGTH GAS SYSTEM UPPERS COME EQUIPPED WITH HANDGUARDS. I WAS REFERRING TO REPLACEMENT FREE FLOATING HANDGUARDS. HERE'S A 16" UPPER WITH A MEDIUM FOREND AND A 10.5" UPPER WITH A SHORT FOREND. I THINK THEY LOOK "RIGHT" WITH THESE RESPECTIVE FORENDS. [IMG]http://www.thermaldynamics.com/pictures/mstn/Vltors.jpg[/IMG] WES GRANT [URL]MSTN.BIZ[/URL] |
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Posted: 8/24/2003 8:03:31 PM EDT
[#7]
Wes, that's why you use a KAC low-profile gasblock and RAS front BUIS ;-) Does Daniel Defense make one the same as the KAC Mid-Long? I like the idea of the Aluminum barrel nut for some odd reason...
-Cap'n |
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Posted: 8/25/2003 3:43:13 AM EDT
[#8]
CAP'N,
YES, DANIEL DEFENSE MAKES A VERSION THE SAME LENGTH AS THE KAC MEDIUM-LONG. THEY CALL IT THEIR 9.5" VERSION. I BELIEVE WE HAVE THEM, AS WELL. WES GRANT [URL]MSTN.BIZ[/URL] |
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Posted: 8/25/2003 6:04:01 PM EDT
[#9]
Thanks for the info...should've known the gas system had something to do with it. I agree that CAR-length handguards look dorky on a 16" barrel.
Does KAC still make medium-short? JScott |
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Posted: 8/26/2003 6:06:32 AM EDT
[#10]
JScott, I've wondered the same thing.
Does anyone know if the medium short FF RAS (KAC part number 991687) is still produced or available? Thanks |
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Posted: 9/2/2003 11:09:54 AM EDT
[#11]
I have a Rock-river 16" that has the mid-length gas system.
This was a "special build" which has a full bull barrel behind the gas block and Hbar in front. It came with a DPMS-style float tube. I replaced it with the [b]Armalite mid-length green fiberglass float tube[/b]. -z |
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Posted: 9/2/2003 11:46:16 AM EDT
[#12]
Wouldn't the medium length handguards have less of heat problem than the shorty?
Plus you get a slightly longer sight radius for irons. |
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Posted: 9/2/2003 1:56:13 PM EDT
[#13]
FYI, Armalite is going to be releasing a RAS for midlength configs at the end of October. You can see a CAD pic of it on their site under New Products. I spoke with a sales rep today and he informed me that one RAS will fit either the AR-15 OR the AR-10. One rail will be slightly taller than the other so that all the user need do is flip it around to match whatever their receiver height is. I don't know how this will affect attachments on the bottom of the taller rail, although I doubt it's a huge difference.
Personally, I think 'end of October' is too long! [:)] |
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Posted: 9/2/2003 6:21:41 PM EDT
[#14]
Quoted: Cosmetic. Short handguards, designed originally for the 10" bbl XM177E1 and carried over to the 14.5" bbl M4 look [i]dorky[/i] on 16" barrels. Moving the front sight out so the barrel looks better requires "mid length" handguards. 18" bbl, which offers nothing a 20" doesn't, can use them as well. -- Chuck Are you saying there is no advantage to a mid-length system other than it looks better? I was getting ready to build a mid-length RRA with an ARMS#58 for my next projecct but you just saved me a thousand dollars, thank you!!! For some reason I was under the impression they had some advantage over the carbine. I guess you learn something new everyday [:D] |
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Posted: 9/3/2003 5:31:10 AM EDT
[#15]
M.S.T.N. HAS THE KAC "TWO TOO LONG", "TOO SHORT" FOREND YOU MENTION IN STOCK. NOT ON THE WEB SITE. EMAIL ME DIRECTLY AT:
[email protected] IF INTERESTED. $320 PLUS $10 FEDEX. |
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Posted: 9/3/2003 4:30:21 PM EDT
[#16]
Chuck is FOS. Read the two threads linked above for the real scoop. It's more than just cosmetic.
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Posted: 9/9/2003 1:14:47 PM EDT
[#17]
Daniel Defense's mid legnth system due out end of Sept.
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