Author
Message
clayharvey
Offline
Posts: 6
Feedback: 100% (16)
Posted: 9/22/2013 5:53:20 PM EST
[Last Edit: 9/22/2013 6:41:56 PM EST by clayharvey]
I've got a build that just finished being Cerakoted and I've run into an issue with the Fortis REV 14" rail. I've got a Daniel Defense 14.5" barrel that was going to have a PWS FSC556 brake pinned but it's getting into the REV rail due to it being longer than 14". Stickman has posted a picture of a 14" REV/14.5" Barrel with a pinned Surefire MB556 brake that seems to clear ok but is anyone else running a similar setup without clearance issues? Below are two pics showing the base of the PWS brake being covered by the rail.

http://i817.photobucket.com/albums/zz94/techster82/fortis1_zps128ccbfd.jpg

http://i817.photobucket.com/albums/zz94/techster82/fortis2_zps0779645f.jpg
Marksman14
Member
Offline
Posts: 16760
Feedback: 100% (149)
Link To This Post
Posted: 9/23/2013 12:01:29 PM EST
[Last Edit: 9/23/2013 12:01:59 PM EST by Marksman14]
Yeah that's an issue. What's your question though? The sf brake is longer and the ports are at the end. That's why it works where your setup doesn't.
Raizo_Sekai
Member
Offline
Posts: 5479
Feedback: 100% (30)
Link To This Post
Posted: 9/23/2013 12:28:37 PM EST
The opinions expressed are my own and do not necessarily reflect the views of my
employer.
pjomalley
Member
NRA
Offline
Posts: 1376
Feedback: 0% (0)
Link To This Post
Posted: 9/23/2013 12:54:23 PM EST
maybe you got experimental 15 in rail by mistake?
You don't understand, them boys killed my dog!
d13s3l
Member
NRA
Offline
Posts: 2502
Feedback: 100% (231)
Link To This Post
Posted: 9/23/2013 1:02:42 PM EST
from Fortis site:

Length: 14.815"
Proud Member of Team Ranstad
NRA Member
Tennessee Squire
d13s3l
Member
NRA
Offline
Posts: 2503
Feedback: 100% (231)
Link To This Post
Posted: 9/23/2013 1:08:11 PM EST
get a diff muzzle brake
Proud Member of Team Ranstad
NRA Member
Tennessee Squire
pjomalley
Member
NRA
Offline
Posts: 1377
Feedback: 0% (0)
Link To This Post
Posted: 9/23/2013 2:27:45 PM EST
maybe kac mams break is longer?
You don't understand, them boys killed my dog!
clayharvey
Offline
Posts: 7
Feedback: 100% (16)
Link To This Post
Posted: 9/23/2013 3:53:50 PM EST
[Jump To Reply]Originally Posted By Marksman14:
Yeah that's an issue. What's your question though? The sf brake is longer and the ports are at the end. That's why it works where your setup doesn't.


My question is simply this: Is anyone else out there running a 14" Fortis Rail on a 14.5" barrel successfully, and if so what muzzle brake have you found that works? The only pic I've seen of a setup that looks like it may be functional is one that features the Surefire MB556. Unfortunately I don't have a store around me that stocks a wide selection of brakes that would allow me to test fit them prior to purchasing. If anyone knows of a brake that has ports further out than the PWS FSC556 I'd appreciate the info.


secretwheelman
Offline
Posts: 500
Feedback: 100% (39)
Link To This Post
Posted: 9/23/2013 4:06:37 PM EST
clayharvey
Offline
Posts: 8
Feedback: 100% (16)
Link To This Post
Posted: 9/23/2013 4:18:13 PM EST
[Jump To Reply]Originally Posted By secretwheelman:
What the hell happened there?


I believe the pressure from the upward muzzle blast caused the aluminum handguard to fracture since it wasn't clear of the handguard. Exactly what I am wanting to avoid.
d13s3l
Member
NRA
Offline
Posts: 2506
Feedback: 100% (231)
Link To This Post
Posted: 9/23/2013 4:55:20 PM EST
http://www.ar15.com/mobile/topic.html?b=3&f=12&t=609705&page=3

look for m3racer similiar but different ....using aac balckout

i am thinking of a similar build but w/ a KX3
Proud Member of Team Ranstad
NRA Member
Tennessee Squire
Stickman
Rainier Arms
Offline
Posts: 29102
Feedback: 100% (1)
Link To This Post
Posted: 9/23/2013 7:02:40 PM EST
[Jump To Reply]Originally Posted By clayharvey:


My question is simply this: Is anyone else out there running a 14" Fortis Rail on a 14.5" barrel successfully, and if so what muzzle brake have you found that works?


Surefire.
Stick

sales@rainierarms.com
www.rainierarms.com
(253) 218-2999 Office
(253) 218-2998 FAX
PNWRN
Offline
Posts: 218
Feedback: 0% (0)
Link To This Post
Posted: 9/24/2013 11:36:46 AM EST
[Jump To Reply]Originally Posted By clayharvey:
Originally Posted By Marksman14:
Yeah that's an issue. What's your question though? The sf brake is longer and the ports are at the end. That's why it works where your setup doesn't.


My question is simply this: Is anyone else out there running a 14" Fortis Rail on a 14.5" barrel successfully, and if so what muzzle brake have you found that works? The only pic I've seen of a setup that looks like it may be functional is one that features the Surefire MB556. Unfortunately I don't have a store around me that stocks a wide selection of brakes that would allow me to test fit them prior to purchasing. If anyone knows of a brake that has ports further out than the PWS FSC556 I'd appreciate the info.





Any of the linear comps like the Troy Claymore, Flaming Pig, etc. would be your best option.
secretwheelman
Offline
Posts: 503
Feedback: 100% (39)
Link To This Post
Posted: 9/24/2013 3:57:24 PM EST
[Jump To Reply]Originally Posted By clayharvey:
Originally Posted By secretwheelman:
What the hell happened there?


I believe the pressure from the upward muzzle blast caused the aluminum handguard to fracture since it wasn't clear of the handguard. Exactly what I am wanting to avoid.
He's using an upside down A2, so I'm not sure that would do it.
ManBearPack
The Nightman Cometh
NRAInstructor
Online
Posts: 1695
Feedback: 100% (125)
Link To This Post
Posted: 10/11/2013 2:02:35 PM EST
I'm thinking about doing a 14.5" build with the Fortis 14, has anyone figured out anymore options besides the Surefire as far as muzzle devices go?
"Shooting at a fixed target is only a step towards shooting at a moving one like a man."
-Lord Robert Baden-Powell
Shadow_Dancer
Offline
Posts: 253
Feedback: 100% (3)
Link To This Post
Posted: 10/11/2013 3:51:50 PM EST
[Last Edit: 10/11/2013 3:52:59 PM EST by Shadow_Dancer]
Depending on how much thread you have to play with, you may be able to shim your compensator with washers and extend it a few millimeters which should give you the length you need to clear the leading edge of the rail.

You don't have to worry about the compensator backing off the barrel since you'll be pinning it.
Shadow_Dancer
Offline
Posts: 254
Feedback: 100% (3)
Link To This Post
Posted: 10/11/2013 3:55:06 PM EST
[Jump To Reply]Originally Posted By secretwheelman:
Originally Posted By clayharvey:
Originally Posted By secretwheelman:
What the hell happened there?


I believe the pressure from the upward muzzle blast caused the aluminum handguard to fracture since it wasn't clear of the handguard. Exactly what I am wanting to avoid.
He's using an upside down A2, so I'm not sure that would do it.


Blast wave probably reflected off the inside of the handguard and bounced up.
ManBearPack
The Nightman Cometh
NRAInstructor
Online
Posts: 1697
Feedback: 100% (125)
Link To This Post
Posted: 10/11/2013 4:10:34 PM EST
Rainier told me today that their XTC comp is compatible with the REV 14, still waiting to hear back from Fortis to see their input on the subject.
"Shooting at a fixed target is only a step towards shooting at a moving one like a man."
-Lord Robert Baden-Powell
Mudpie1313
Offline
Posts: 18
Feedback: 0% (0)
Link To This Post
Posted: 10/11/2013 4:26:33 PM EST
I am running 14.5 BCM with spikes dynacomp and 14 Fortis rev 400rnds and no problem yet.
ManBearPack
The Nightman Cometh
NRAInstructor
Online
Posts: 1698
Feedback: 100% (125)
Link To This Post
Posted: 10/11/2013 4:48:50 PM EST
[Jump To Reply]Originally Posted By Mudpie1313:
I am running 14.5 BCM with spikes dynacomp and 14 Fortis rev 400rnds and no problem yet.


Would you mind posting a pic of that?
"Shooting at a fixed target is only a step towards shooting at a moving one like a man."
-Lord Robert Baden-Powell
akiraproject24
Offline
Posts: 43
Feedback: 0% (0)
Link To This Post
Posted: 12/6/2013 4:44:24 PM EST
Wanted to do 14" Fortis rail on my 14.5" FN barrel. Unfortunately, didn't catch this thread until after purchasing the rail and a Griffin Armament M4SDII Flash/comp. Flash comp is currently shipping but I'm going to try it out and see if it clears. I spoke with a board member on here who ran the 14" Fortis with the Surefire MB556, he did his homework much better than I did and showed me that the Fortis comes in closer to 14.8". Not wanting to go with the Surefire MB556, and upon confirming the M4SDII Flash/comp will not clear (suspecting it won't from photos), I am going to either wait for a device more preferable to me to be discovered OR will look to pick up a 14" Centurion CMR. This rail measures 13.688" so I will not be as limited in my choices of muzzle devices.


drop11
Member
Offline
Posts: 929
Feedback: 100% (6)
Link To This Post
Posted: 12/6/2013 7:36:01 PM EST
[Last Edit: 12/6/2013 7:37:37 PM EST by drop11]
Not a cheap fix but something like a centurion 14.7 barrel would get it out the a bit more. Damned good barrel too. It would also let you run any comp you chose and not just the extended one made for 14.5 barrels.
I need a couple of the old style clamps for troy folding sights.
Stickman
Rainier Arms
Offline
Posts: 29322
Feedback: 100% (1)
Link To This Post
Posted: 12/6/2013 10:44:00 PM EST
[Jump To Reply]Originally Posted By secretwheelman:
He's using an upside down A2, so I'm not sure that would do it.



What? Who is? If you mean the one shown in this thread with the damaged rail, it looks like the BCM comp that is sitting on my desk next to me...
Stick

sales@rainierarms.com
www.rainierarms.com
(253) 218-2999 Office
(253) 218-2998 FAX
Stickman
Rainier Arms
Offline
Posts: 29323
Feedback: 100% (1)
Link To This Post
Posted: 12/6/2013 10:45:09 PM EST
[Jump To Reply]Originally Posted By ManBearPack:
Rainier told me today that their XTC comp is compatible with the REV 14, still waiting to hear back from Fortis to see their input on the subject.



I'm sure it is compatible in one sense of the word, but you might want to check and see if the brake ports extend outside the rail.
Stick

sales@rainierarms.com
www.rainierarms.com
(253) 218-2999 Office
(253) 218-2998 FAX