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 AlphaOperator
You cannot stop it now....it's automatic
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Joined: Jun 2007  CO, USA
 Posts: 768 Feedback: 100% (23) |
Posted: 7/2/2012 4:52:30 PM
THE IMAGE ABOVE IS A PAID ADVERTISEMENT So I see many owners are getting the 8" barrels and putting 7" rails on them, and that the guys running 10" barrels are typically running 9" handguards..... but what about you guys that chose to go with the 9" 300 BLK barrels? Would you like manufacturer's to produce 8" rails for use with 9" 300 BLK barrels? |
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BrownSunshine
HMFIC
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Joined: Jan 2011 KS, USA
Posts: 430 Feedback: 100% (4) Link To This Post |
Posted: 7/2/2012 5:08:20 PM
I don't think it's a big deal. My 7" handguard on my 8" Noveske barrel ends right behind the flash hider. I am able to get a wrench on it still and was able to change out the flash hider without taking off my rail.
On the other hand, my 10.5" 5.56 upper has a 10" rail on it and I had to remove the rail to service the flash hider. I think the 7" rail on a 8" barrel is the perfect setup. |
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Posted: 7/2/2012 6:27:55 PM
Originally Posted By BrownSunshine:
I don't think it's a big deal. My 7" handguard on my 8" Noveske barrel ends right behind the flash hider. I am able to get a wrench on it still and was able to change out the flash hider without taking off my rail. On the other hand, my 10.5" 5.56 upper has a 10" rail on it and I had to remove the rail to service the flash hider. I think the 7" rail on a 8" barrel is the perfect setup. +1 .. why re-invent the wheel ?? |
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AlphaOperator
You cannot stop it now....it's automatic
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Joined: Jun 2007 CO, USA
Posts: 769 Feedback: 100% (23) Link To This Post |
Posted: 7/2/2012 7:32:23 PM
No wheel re-inventing going on here.....follow with me
the premise is that many go with a handguard that is 1" shorter than their barrel length so that the barrel is fully shrouded by the handguard and only the FH or MB is exposed. (there are other reasons as well) hence, why I asked if an 8" guard would be "more appropriate" on a 9" barrel. You'd only leave the FH exposed example found here.... http://www.rainierarms.com/?page=shop/detail&product_id=3073 Do you see how the URX handguard covers all the barrel, giving you an extended sight radius versus a more traditional 7" carbine handguard? Whenever you can extend the sight radius, it should only aid the user's ability to make more accurate hits using iron sights. That's a good thing. And when you have a SBR that is quite short, wouldn't you want to make use of that additional 1" and extend your front sight out just a tad further? You'll have the barrel fully shrouded by the handguard, with an extended sight radius(only 1" more, but hey, it can't hurt), that utilizes what would otherwise be wasted space(exposed barrel), and gives you more real estate for your hands, and other rail accessories if you choose to add them. Make sense? Originally Posted By ds762: Originally Posted By BrownSunshine: I don't think it's a big deal. My 7" handguard on my 8" Noveske barrel ends right behind the flash hider. I am able to get a wrench on it still and was able to change out the flash hider without taking off my rail. On the other hand, my 10.5" 5.56 upper has a 10" rail on it and I had to remove the rail to service the flash hider. I think the 7" rail on a 8" barrel is the perfect setup. +1 .. why re-invent the wheel ?? |
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LMTRocks
Minister of Propaganda
Team Member
Joined: Nov 2008 USA
Posts: 2389 Feedback: 100% (53) Link To This Post |
Posted: 7/3/2012 10:23:55 AM
I think KAC makes a URX in 8.
I'm going to run a Troy 7.2 VTAC on my Noveske 8" barrel when it gets here. The 7.6 would've given me just a little more room to put a sight or light up top. However Troy only made the 7.6 in the Extreme pattern and not the VTAC. Plus I paid $75 for the VTAC on the EE here. If the barrel length goes too far past the end of the rail, you have options. ADCO.... |
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Posted: 7/3/2012 10:41:23 AM
I could see some people interested in it, but not enough to make it worthwhile to manufacturers to add an 8" option to their rails. Personally, I like a little bit of rail showing between the rail and muzzle.
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Posted: 7/3/2012 1:24:35 PM
I went with the AAC upper with the 8" URXIII rail...a factory upper. I did not like the looks of the 9" barrel with the 7" handguards. Some don't mind it. I have partially avoided a similar look when I used the YHM Specter length forend on my 11.5" 5.56 upper, I would still rather have a 10.5 length rail.
Basically the length puts the forend as close to the the suppressor setup without countersinking it, which is a problem with some locking suppressors with a quick detach feature. It has cleaner lines. If I had to do it again and there was not a 8" forend available I would take a close look at the ballistics between 8" and 10" barrels. I would probably go for the 8" to keep a shorter package, but the ballistics may be attractive with the 10". The 9" AAC upper with the AAC SDN6 is about the same length as a 14.5 barrel. Mike |
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FastBanana
Member
Team Member
Joined: Feb 2011 GA, USA
Posts: 209 Feedback: 96% (23) Link To This Post |
Posted: 7/3/2012 3:24:21 PM
As a rule of thumb, if you want it to be flush, the rail needs to be 1" shorter than the barrel.
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Posted: 7/3/2012 5:09:18 PM
Originally Posted By AlphaOperator:
No wheel re-inventing going on here.....follow with me the premise is that many go with a handguard that is 1" shorter than their barrel length so that the barrel is fully shrouded by the handguard and only the FH or MB is exposed. (there are other reasons as well) hence, why I asked if an 8" guard would be "more appropriate" on a 9" barrel. You'd only leave the FH exposed example found here.... http://www.rainierarms.com/?page=shop/detail&product_id=3073 Do you see how the URX handguard covers all the barrel, giving you an extended sight radius versus a more traditional 7" carbine handguard? Whenever you can extend the sight radius, it should only aid the user's ability to make more accurate hits using iron sights. That's a good thing. And when you have a SBR that is quite short, wouldn't you want to make use of that additional 1" and extend your front sight out just a tad further? You'll have the barrel fully shrouded by the handguard, with an extended sight radius(only 1" more, but hey, it can't hurt), that utilizes what would otherwise be wasted space(exposed barrel), and gives you more real estate for your hands, and other rail accessories if you choose to add them. Make sense? Originally Posted By ds762:
Originally Posted By BrownSunshine:
I don't think it's a big deal. My 7" handguard on my 8" Noveske barrel ends right behind the flash hider. I am able to get a wrench on it still and was able to change out the flash hider without taking off my rail. On the other hand, my 10.5" 5.56 upper has a 10" rail on it and I had to remove the rail to service the flash hider. I think the 7" rail on a 8" barrel is the perfect setup. +1 .. why re-invent the wheel ?? no explanation necessary ... I'm not a retard that needs it spelled out in krayon. 
I understand what your saying .. but not everyone needs the "advantage" of a longer sight radius as most guys I know with short 300 WTF/BLK uppers (myself included) are running dots or optics so who gives an F about longer sight radius in that situation? |
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cms81586
Need More Guns...
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Joined: Feb 2001 AZ, USA
Posts: 8197 Feedback: 100% (41) Link To This Post |
Posted: 7/3/2012 7:41:10 PM
[Last Edit: 7/3/2012 7:42:25 PM by cms81586]
Originally Posted By ds762:
Originally Posted By AlphaOperator:
No wheel re-inventing going on here.....follow with me the premise is that many go with a handguard that is 1" shorter than their barrel length so that the barrel is fully shrouded by the handguard and only the FH or MB is exposed. (there are other reasons as well) hence, why I asked if an 8" guard would be "more appropriate" on a 9" barrel. You'd only leave the FH exposed example found here.... http://www.rainierarms.com/?page=shop/detail&product_id=3073 Do you see how the URX handguard covers all the barrel, giving you an extended sight radius versus a more traditional 7" carbine handguard? Whenever you can extend the sight radius, it should only aid the user's ability to make more accurate hits using iron sights. That's a good thing. And when you have a SBR that is quite short, wouldn't you want to make use of that additional 1" and extend your front sight out just a tad further? You'll have the barrel fully shrouded by the handguard, with an extended sight radius(only 1" more, but hey, it can't hurt), that utilizes what would otherwise be wasted space(exposed barrel), and gives you more real estate for your hands, and other rail accessories if you choose to add them. Make sense? Originally Posted By ds762:
Originally Posted By BrownSunshine:
I don't think it's a big deal. My 7" handguard on my 8" Noveske barrel ends right behind the flash hider. I am able to get a wrench on it still and was able to change out the flash hider without taking off my rail. On the other hand, my 10.5" 5.56 upper has a 10" rail on it and I had to remove the rail to service the flash hider. I think the 7" rail on a 8" barrel is the perfect setup. +1 .. why re-invent the wheel ?? no explanation necessary ... I'm not a retard that needs it spelled out in krayon crayon.
I understand what your saying .. but not everyone needs the "advantage" of a longer sight radius as most guys I know with short 300 WTF/BLK uppers (myself included) are running dots or optics so who gives an F about longer sight radius in that situation? FWIW...the AAC rail is perfect for 9" barrels. That's what I'm going with for my 300 BLK...but then again I already have a URX wrench. |
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Posted: 7/3/2012 8:54:59 PM
That rail is awesome, but I already had everything except for the barrel and couldn't justify an extra ~$700, even though the AAC upper as a package is a killer deal.
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doctorfireant
Fire Ants Rule!!!
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Joined: Jan 2001 TX, USA
Posts: 900 Feedback: 0% (0) Link To This Post |
Posted: 7/3/2012 11:33:24 PM
I have a 9" Troy / VTAC BattleRail Alpha on my 10" Noveske and a 7.2" Troy Alpha Rail on my 9" CORE15.
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Cole2534
Lightweight is the right weight
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Joined: Jan 2008 OK, USA
Posts: 12199 Feedback: 100% (9) Link To This Post |
Posted: 7/9/2012 3:06:12 PM
> URX <
Posted Via AR15.Com Mobile |
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Posted: 8/8/2012 11:51:24 PM
Originally Posted By FastBanana:
As a rule of thumb, if you want it to be flush, the rail needs to be 1" shorter than the barrel. want what flush, if dd mk18 risII rail is 9.55, barrel is 10.5 it will sit flush? |
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Cole2534
Lightweight is the right weight
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Joined: Jan 2008 OK, USA
Posts: 12730 Feedback: 100% (9) Link To This Post |
Posted: 8/9/2012 12:18:24 AM
Originally Posted By skt4271:
Originally Posted By FastBanana:
As a rule of thumb, if you want it to be flush, the rail needs to be 1" shorter than the barrel. want what flush, if dd mk18 risII rail is 9.55, barrel is 10.5 it will sit flush? As a rule of thumb, measurements need reference points. IME, you lose 3/4" of bbl length on install. Ie- if you have a 12" rail, a 12-3/4" bbl will be required for the crown to be flush with the rail's end. Posted Via AR15.Com Mobile |
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Posted: 8/9/2012 1:32:49 AM
Because the 3/4 goes into the receiver? Are you counting maybe lost of threads or to the tip of muzzle?
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