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Posted: 8/1/2005 6:50:49 AM EDT
[#1]
From what I have heard not much of a difference.
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Posted: 8/1/2005 6:52:51 AM EDT
[#2]
from my undstanding the 11.5 works great but the 10.5 has problems.
i have a 11.5 and i can say that yes it does work all the time. can't report on the 10.5. |
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Posted: 8/1/2005 9:01:37 AM EDT
[#3]
Never heard of problems with the LMT 10.5 nor the LW 10.5 Bushy and Colt do 11.5 and I have heard of more problems with those. I guess the opposite could easily be true... it all depends on the manufacturer. |
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Posted: 8/1/2005 9:06:37 AM EDT
[#4]
Any short barrel configuration can cause potential reliability problems; of the two, the 11.5 inch is likely to be more reliable than the 10.5 inch.
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Posted: 8/1/2005 9:09:01 AM EDT
[#5]
I would agree completely. All things being equal, the 11.5" will be less finicky.
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Posted: 8/1/2005 9:10:15 AM EDT
[#6]
I didn't go with the 10.5" because I didn't want the muzzle that close to my light, that's
the honest reason. Also even that one inch costs you more in precious distance to get the velocity up over 2700. With the A2 FH the light got covered in residue and it took forever to clean it. I just added the Noveske Krink FH and I'm telling anyone that will listen that it is a MUST HAVE on a shorty. It's amazing.... 
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Posted: 8/1/2005 9:14:32 AM EDT
[#7]
It appears that some people have had problems with a 10.5" barrel with a full-auto.
www.ar15.com/forums/topic.html?b=3&f=14&t=153425 Not sure if you would have the same problem on semi, but it would appear that you might have some gas issues based on the comments in the above-thread if the upper was not properly set up. |
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Posted: 8/1/2005 9:15:27 AM EDT
[#8]
Another advantage of the 11.5 is you can run a can.
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Posted: 8/1/2005 9:16:24 AM EDT
[#9]
BOTH SHOULD BE BANNED!
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Posted: 8/1/2005 9:17:03 AM EDT
[#10]
yep, reliability.
An inch can make a big difference (What she said) If you have a 10.5" barrel, that gas port better be just right. They can be reliable, but need to be set up just right. |
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Posted: 8/1/2005 9:17:56 AM EDT
[#11]
TexasSIG, the flash hider looks like it adds substantial weight to the muzzle. Having not handled one, wghat's it like in use?
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Posted: 8/1/2005 9:20:52 AM EDT
[#12]
It weighs 9 ounces. I don't notice it. Mostly it's an empty cannister with an expansion area for the muzzle blast gasses. It is supposed to help shorter barrel reliability by adding some back pressure. I didn't need that, my 11.5 was already 100% reliable, but I wanted an effective flash hider. |
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Posted: 8/1/2005 9:25:12 AM EDT
[#13]
Thx for the info.
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Posted: 8/1/2005 9:34:05 AM EDT
[#14]
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Posted: 8/1/2005 9:42:46 AM EDT
[#15]
Nice reply markm...., in the mean time 11.5 rules!!!   ------------- G18 - the best in full-auto... |
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Posted: 8/1/2005 9:45:09 AM EDT
[#16]
I have 2 10.5, an LMT with no problems and an LW, but the LW is a different gas system so it really doesn't apply. I also have an 11.5. All run FA. I have had no problems with any of them. Keep in mind to the best of my knowledge you loose 50 FPS per inch with 55gr ammo.
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Posted: 8/1/2005 9:49:15 AM EDT
[#17]
Get the extra inch in case you feel like lauching rifle grenades some day.
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Posted: 8/1/2005 10:05:16 AM EDT
[#18]
Thanks for the info and thanks Kasab for starting this thread...I plan on getting an 11.5" SBR soon so I'm glad to hear it's pretty reliable.
Question: Would it be as reliable or close to as reliable as my 20" AR? |
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Posted: 8/1/2005 10:18:08 AM EDT
[#19]
11.5" will be 100% reliable. |
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Posted: 8/1/2005 10:25:11 AM EDT
[#20]
You can run a can on a 10.5 also, although some companies do have issues with barrels under 11" |
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Posted: 8/1/2005 11:32:51 AM EDT
[#21]
Yup, I was referencing most warrenty agreement issues. |
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Posted: 8/1/2005 11:37:51 AM EDT
[#22]
Wait a second...don't 11.5" uppers have a front sling swivel???
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Posted: 8/1/2005 11:38:59 AM EDT
[#23]
All the 10.5-inch uppers I have been around (Colt and LMT) work just fine.
 My Bushmaster SBR has a 11.5-inch barrel as Bushmaster was only selling that length at the time and not the shorter one. They told me they had too many issues with reliability with the shorter barrel. |
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Posted: 8/1/2005 11:45:01 AM EDT
[#24]
My 10.5" has made me proud everytime sofar.
No issues with relaiabilty or accuracy to date. And you don´t bump into doorframes during housecleaning. |
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Posted: 8/1/2005 11:53:49 AM EDT
[#25]
They do unless you drill the pin out to get rid of the useless things........ |
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Posted: 8/1/2005 11:58:05 AM EDT
[#26]
Thanks again TexasSIG.
I planned on putting a sling on it so, I'll need it. |
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Posted: 8/1/2005 12:01:11 PM EDT
[#27]
Yeah, I use a single point with an HK style clip on the side of the Magpul, but the come with the swivel usually. I just drilled it out to eliminate the noise. |
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Posted: 8/1/2005 12:23:55 PM EDT
[#28]
I have a factory Colt Commando 11.5 " upper. It always works.
Colt_SBR |
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Posted: 8/1/2005 12:33:03 PM EDT
[#29]
10.5" suppressed, works great in Semi, have not tried it in Full.
Supposedly the reliability issue is in Full, not Semi, version. TRG |
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Posted: 8/1/2005 12:38:51 PM EDT
[#30]
I’ve got a suppressed 10.5-inch SBR too (works fine on full-auto), but comparing a suppressed short barrel to an unsuppressed gun is not really fair, the suppressor adds a lot of back pressure that will make a short barreled weapon just fine.
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Posted: 8/1/2005 3:54:23 PM EDT
[#31]
You can run one on a 10.5" too. I have seen Phil Dater say he would warranty a 10.5" LMT on this board before. |
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Posted: 8/1/2005 4:35:02 PM EDT
[#32]
That's still an iffy statement and certainly not the norm. Most suppressor manufacturers won't honor warranties for their products run on barrels shorter than 11.5. You have mentioned the exception rather than the rule. |
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Posted: 8/1/2005 5:07:03 PM EDT
[#33]
taken from a post made by the great Rob Silvers on silencertests.com/www.silencertests.com/silencer-forum/viewtopic.php?t=388 considering the above i think i will take the 1" hit in length and opt for the 11.5". besides, most suppressor manufacturers wont warrantee using their suppessors on anything shorter than 11.5". but that 10.5 incher sure does look cool. i think i will have to pick one up later on down the road as a cool range toy. 10.5 incher + krink brake = waaay cool!! |
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Posted: 8/1/2005 5:09:40 PM EDT
[#34]
Does that chart mean that it will reliably fragment up to 40 yards but beyond that, it's random?
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Posted: 8/1/2005 5:12:45 PM EDT
[#35]
And that's using 55gr FMJ ammo only. If you are shooting a shorty, you need to be depending on ammo design rather than fragmentation. Take a 75gr TAP or 77gr Mk262. They don't depend on fragmentation for performance so those distances are not as applicable. |
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Posted: 8/1/2005 5:18:30 PM EDT
[#36]
If it didn't depend on fragmentation for lethality, then it would be the same as using the 62 or 55 grain ammo beyond their effective fragmentation range, only with a barely heavier bullet. In other words, the advantages of using those OTM bullets is that they are capable of greater accuracy and that they reliably fragment at greater ranges. |
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Posted: 8/1/2005 5:19:52 PM EDT
[#37]
My 10.5" runs like a Swiss watch. Absolutely zero problems.
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Posted: 8/1/2005 5:54:17 PM EDT
[#38]
Well, if you are using a 10.5" you are probably not planning to engage much beyond 'clearing a room' distances, IMHO.
TRG |
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Posted: 8/2/2005 7:52:42 PM EDT
[#39]
Why is it that some companies won't warranty their cans on <11.5" bbls? Too much blast that tears the insides apart?
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Posted: 8/3/2005 7:23:41 AM EDT
[#40]
Run any ammo other than military ball, then those number mean nothing. If the weapon is to be used on people, why use ball ammo? I did not sign the Geneva accord... |
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Posted: 8/3/2005 8:03:04 AM EDT
[#41]
+1 I think there are many other options out their other than ball ammo. Heck, the other options are even better. |
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Posted: 8/3/2005 12:45:30 PM EDT
[#42]
What manefacturer makes the 10.5" barrel? I know the original XM177E1 had a 10.25" barrel on it, and so does the CMMG models produced today. Is Colt making a 10.5" barrel now?
As for the question at hand, I have a Bushmaster 11.5" barreled carbine and it has been a very reliable gun so far. |
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Posted: 8/3/2005 12:47:31 PM EDT
[#43]
Colt, LMT, CMMG, and some others make 10.5" barrels
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Posted: 8/4/2005 4:39:54 AM EDT
[#44]
Thanks Bravo.
I know that 9MM AR15 set-ups come with 10.5" barrels, and the new HK416 has a 10.5" barrel option, but unless the barrels are custom cut to 10.5" most of the barrels I have seen (at least for sale) have been 10.25" including CMMG (they advertise them as 10.3"). With some looking today I did find LMT defender barrels that were 10.5" though thanks to your help. |
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Posted: 8/4/2005 5:00:17 AM EDT
[#45]
Who makes the 10.5" 9mm barrels?
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Posted: 8/4/2005 5:38:21 AM EDT
[#46]
tag
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Posted: 8/4/2005 5:42:06 AM EDT
[#47]
awesome config! 
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Posted: 8/4/2005 7:28:54 AM EDT
[#48]
Noboy's mentioned it yet, but with the 11.5" if you were to change your mind about the SBR or decided to give it to a family member or sell it you can just add an XM177 style FH and hit the magical 16".
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Posted: 8/4/2005 7:32:37 AM EDT
[#49]
Thanks... I got it just about where I want it finally.... 
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Posted: 8/4/2005 8:20:58 AM EDT
[#50]
Colt |
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