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Posted: 4/15/2017 10:00:06 PM EDT
[#1]
Quote HistoryQuoted:
Folks, I've attempted to jumpstart our mainstream revival in AR Discusions. It's a "Build" pic and discussion thread open to both cutout and non-cutout forends. Only rules, build must be an AR variant, have an FSB, and a free float forend. Thought this might give it a better chance. Hopefully it sticks this time. See you there. http://www.ar15.com/forums/t_3_118/712263_Official-Free-Float-FSB-Builds-Revival--Picture-Discussion-Thread-.html |
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Posted: 4/15/2017 10:01:01 PM EDT
[#2]
Quote HistoryQuoted:
Folks, I've attempted to jumpstart our mainstream revival in AR Discusions. It's a "Build" pic and discussion thread open to both cutout and non-cutout forends. Only rules, build must be an AR variant, have an FSB, and a free float forend. Thought this might give it a better chance. Hopefully it sticks this time. See you there. http://www.ar15.com/forums/t_3_118/712263_Official-Free-Float-FSB-Builds-Revival--Picture-Discussion-Thread-.html |
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Posted: 4/16/2017 7:14:44 PM EDT
[#3]
Quote HistoryQuoted:
You're doing the lord's work Sir. The new thread is doing well. Some nice builds being posted. A few shit talkers, but we have a Mod in there now keeping people focused on pics and specs. I've seen a few folks from here take the leap over. All are welcome. https://www.ar15.com/forums/t_3_118/712263_.html&page=1&anc=7428840#i7428840 |
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Posted: 4/19/2017 9:20:27 PM EDT
[#4]
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Posted: 4/20/2017 12:24:45 PM EDT
[#5]
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Posted: 4/29/2017 11:48:48 AM EDT
[#6]
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Posted: 4/29/2017 8:14:53 PM EDT
[#7]
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Posted: 6/15/2017 1:21:53 PM EDT
[#8]
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Posted: 6/15/2017 6:37:54 PM EDT
[#9]
Geissele MK8 13 modified into a carbine FSP rail. You can do this to a MK8 9.5 (carbine), MK4 9.5 (carbine), MK4 13 (carbine), MK8 15 (carbine, midlength and rifle) and MK4 15 (carbine, midlength and rifle). To use taper pins you must use the set screw anti-rotation tabs version.
 Attached File |
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Posted: 6/15/2017 7:28:49 PM EDT
[#10]
Hurry up and mount that bitch! This gone be gud...........
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Posted: 6/16/2017 10:54:34 AM EDT
[#11]
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Posted: 6/17/2017 6:05:12 PM EDT
[#12]
Quote HistoryQuoted:
To use taper pins you must use the set screw anti-rotation tabs version. |
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Posted: 6/17/2017 6:58:37 PM EDT
[#13]
Quote HistoryQuoted:
What do you mean? Thanks Quote HistoryQuoted:
Quoted:
To use taper pins you must use the set screw anti-rotation tabs version. |
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Posted: 6/18/2017 11:41:50 AM EDT
[#14]
Quote HistoryQuoted:
To access the taper pins, the rail must rotate about 6 degrees to the side. AFAIK, all Geissele rails are going to traditional anti-rotation tabs just below the top rail. You won't be able to rotate the rail hardly any with those anti-rotation tabs. The set screw anti-rotation tabs allow rotation with the set screws backed out (even more if you remove 1/16" from each side on the inside). If you use two set screws on the bottom of the FSB, it won't matter which style you use. You may be able to use a clamp on FSB, I don't know. |
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Posted: 6/18/2017 10:31:21 PM EDT
[#15]
Quote History |
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Posted: 6/19/2017 10:50:42 AM EDT
[#16]
Quote HistoryQuoted:
Geissele MK8 13 modified into a carbine FSP rail. You can do this to a MK8 9.5 (carbine), MK4 9.5 (carbine), MK4 13 (carbine), MK8 15 (carbine, midlength and rifle) and MK4 15 (carbine, midlength and rifle). To use taper pins you must use the set screw anti-rotation tabs version. https://www.AR15.Com/media/mediaFiles/138579/-20170615-183353-231452.JPG I'm thinking about doing the MK4 so that all four railed front sections are ahead of the FSB, and slick the rest of the way back. ::shrug:: One day I'll get around to it. ~Augee |
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Posted: 6/19/2017 11:26:36 AM EDT
[#17]
Quote HistoryQuoted:
I've been considering doing something similar to this with either a MK4 or an ALG. I'm thinking about doing the MK4 so that all four railed front sections are ahead of the FSB, and slick the rest of the way back. ::shrug:: One day I'll get around to it. ~Augee Quote HistoryQuoted:
Quoted:
Geissele MK8 13 modified into a carbine FSP rail. You can do this to a MK8 9.5 (carbine), MK4 9.5 (carbine), MK4 13 (carbine), MK8 15 (carbine, midlength and rifle) and MK4 15 (carbine, midlength and rifle). To use taper pins you must use the set screw anti-rotation tabs version. https://www.AR15.Com/media/mediaFiles/138579/-20170615-183353-231452.JPG I'm thinking about doing the MK4 so that all four railed front sections are ahead of the FSB, and slick the rest of the way back. ::shrug:: One day I'll get around to it. ~Augee I'd like to see a 10.3" with a 9.5 rail, 14.5" with a 13" rail and 16" mid length with a 15" rail. |
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Posted: 6/19/2017 7:46:26 PM EDT
[#18]
Quote HistoryQuoted:
Do it! I did everything in less than an hour with hand tools. I'd like to see a 10.3" with a 9.5 rail, 14.5" with a 13" rail and 16" mid length with a 15" rail. Planning on going with a 12" barrel and a PRI front sight. Don't know who's barrel I'm going to use yet.  Attached File Attached File |
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Posted: 6/19/2017 8:23:40 PM EDT
[#19]
Quote HistoryQuoted:
Mk4 9.5. I cut it with my dremel then cleaned it up on my buddy's mill. Planning on going with a 12" barrel and a PRI front sight. Don't know who's barrel I'm going to use yet.https://www.AR15.Com/media/mediaFiles/76485/20170619-193844-234457.JPG https://www.AR15.Com/media/mediaFiles/76485/20170619-193852-234458.JPG Quote HistoryQuoted:
Quoted:
Do it! I did everything in less than an hour with hand tools. I'd like to see a 10.3" with a 9.5 rail, 14.5" with a 13" rail and 16" mid length with a 15" rail. Planning on going with a 12" barrel and a PRI front sight. Don't know who's barrel I'm going to use yet.https://www.AR15.Com/media/mediaFiles/76485/20170619-193844-234457.JPG https://www.AR15.Com/media/mediaFiles/76485/20170619-193852-234458.JPG |
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Posted: 6/19/2017 8:27:19 PM EDT
[#20]
Quote HistoryQuoted:
Are you going to use a taper pin FSB? |
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Posted: 6/19/2017 9:00:18 PM EDT
[#21]
Quote HistoryQuoted:
No. I'm planning on using the PRI front sight that everyone uses on the Mk12 Mod 0 builds. Quote HistoryQuoted:
Quoted:
Are you going to use a taper pin FSB? |
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Posted: 6/25/2017 12:03:17 PM EDT
[#22]
Centurion C4 FSP rails on sale at DVOR.com. No experience with the site.
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Posted: 8/8/2017 8:29:38 AM EDT
[#23]
Doriwoogie, what model DD rail is that on the left? Exactly what I'm looking for but haven't been able to id.
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Posted: 8/8/2017 8:37:36 AM EDT
[#24]
Should have quoted
 ... what DD rail on left?
Quote History |
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Posted: 8/8/2017 8:48:26 AM EDT
[#25]
It would help if you quoted the picture.
DD's FSP rails as I recall: Mk18 RIS II FSP (discontinued) GL/SSC RIS II FSP (never sold) M4A1 RIS II FSP M4 9.5 FSP (discontinued) M4 12.0 FSP (discontinued) M4 12.0 midlength FSP (discontinued) Lite Rail I/II 9.5 FSP (discontinued) Lite Rail I/II 12.0 FSP (discontinued) Lite Rail I/II 12.0 midlength FSP (discontinued) OmegaX 12.0 FSP (discontinued) DDM4/Lite Rail III 12.0 FSP |
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Posted: 8/8/2017 8:54:51 AM EDT
[#26]
Quote HistoryQuoted:
Should have quoted ... what DD rail on left? |
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Posted: 8/9/2017 9:03:21 AM EDT
[#27]
Quote HistoryQuoted:
DD RIS II MK18 FSP. Tough rail to find nowadays, I just recently sold it on EE. |
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Posted: 8/9/2017 9:36:38 AM EDT
[#28]
Quote HistoryQuoted:
It would help if you quoted the picture. DD's FSP rails as I recall: Mk18 RIS II FSP (discontinued) GL/SSC RIS II FSP (never sold) M4A1 RIS II FSP M4 9.5 FSP (discontinued) M4 12.0 FSP (discontinued) M4 12.0 midlength FSP (discontinued) Lite Rail I/II 9.5 FSP (discontinued) Lite Rail I/II 12.0 FSP (discontinued) Lite Rail I/II 12.0 midlength FSP (discontinued) OmegaX 12.0 FSP (discontinued) DDM4/Lite Rail III 12.0 FSP |
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Posted: 8/12/2017 9:25:20 PM EDT
[#29]
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Posted: 8/12/2017 9:41:25 PM EDT
[#30]
Quote HistoryQuoted:
http://i.imgur.com/VVSw33B.jpg |
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Posted: 8/13/2017 1:57:58 AM EDT
[#31]
Quote HistoryQuoted:
http://i.imgur.com/VVSw33B.jpg |
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Posted: 9/8/2017 7:48:24 PM EDT
[#32]
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Posted: 9/9/2017 12:29:40 AM EDT
[#33]
Colt 6920 upper on an LMT lower.
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Posted: 10/10/2017 1:08:56 PM EDT
[#34]
Hello everyone. Sorry if this is in the wrong place, but it looked as good as any.
I'm wanting to put a rail on my upper with FSB that extends to the break. I would prefer key mod or Mlok ( don't care for quad rails anymore). But having a hard time finding one. Anyone have any recommendations? As bad as I hate to say it, looks like the UTG would be ideal..... But its UTG. Any thoughts or links would be appreciated. |
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Posted: 10/10/2017 1:38:09 PM EDT
[#35]
Quote HistoryQuoted:
Hello everyone. Sorry if this is in the wrong place, but it looked as good as any. I'm wanting to put a rail on my upper with FSB that extends to the break. I would prefer key mod or Mlok ( don't care for quad rails anymore). But having a hard time finding one. Anyone have any recommendations? As bad as I hate to say it, looks like the UTG would be ideal..... But its UTG. Any thoughts or links would be appreciated. |
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Posted: 10/10/2017 1:46:00 PM EDT
[#36]
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What FSB location (carbine, mid, rifle) and what barrel length? |
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Posted: 10/10/2017 2:03:53 PM EDT
[#37]
Quote HistoryQuoted:
Carbine length with a 16" barrel. Thanks! Quote HistoryQuoted:
Quoted:
What FSB location (carbine, mid, rifle) and what barrel length? |
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Posted: 10/10/2017 2:24:15 PM EDT
[#38]
Quote HistoryQuoted:
I don't know of any 15" carbine FSP rails off the top of my head. I'd recommend a modified Geissele Mk8 15". You may be able to mod a new set screw anti-rotation Mk14, I won't know until I get my hands on one. If you'd like to go this direction but don't have the tools or ability, I can help you out. I'm interested to hear about the mk14 when you get a chance to look at it. |
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Posted: 10/10/2017 3:30:51 PM EDT
[#39]
Quote HistoryQuoted:
I apprentice that. I'm guessing I would need to cut the top rail section out for the FSB, but is it a 2 piece rail? I'm interested to hear about the mk14 when you get a chance to look at it. Quote HistoryQuoted:
Quoted:
I don't know of any 15" carbine FSP rails off the top of my head. I'd recommend a modified Geissele Mk8 15". You may be able to mod a new set screw anti-rotation Mk14, I won't know until I get my hands on one. If you'd like to go this direction but don't have the tools or ability, I can help you out. I'm interested to hear about the mk14 when you get a chance to look at it. Everything would line up perfect with a Mk8 15:  Attached FileThey just started making the Mk14 with anti-rotation tabs. They're all OOS since Geissele is sending them to people who had problem rails, who knows how long until they're available. |
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Posted: 10/12/2017 8:20:38 AM EDT
[#40]
Quote HistoryQuoted:
It's a one piece rail but is possible to install the FSB with taper pins if you mod it correctly. I have instructions on this page above and probably in this thread as well. I can also answer any questions you have and my offer still stands to do the mod for you. Everything would line up perfect with a Mk8 15: https://www.AR15.Com/media/mediaFiles/138579/16-330070.JPG They just started making the Mk14 with anti-rotation tabs. They're all OOS since Geissele is sending them to people who had problem rails, who knows how long until they're available. Either way, let's make FSP cutout rails great again, America! I plan on doing a Kino 12.5" setup SBR soon, and am trying to decide if I am going with a rail that is full pocket (of which there are few in midlength config) or something like a Samson/Centurion that has the cutout and puts rail under but not beyond. |
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Posted: 10/12/2017 9:52:17 AM EDT
[#41]
Quote HistoryQuoted:
I like it, just not sure you'd need that much rail-estate after the FSB. I guess you could do your light/IR combo, but even that wouldn't need that much space. Either way, let's make FSP cutout rails great again, America! I plan on doing a Kino 12.5" setup SBR soon, and am trying to decide if I am going with a rail that is full pocket (of which there are few in midlength config) or something like a Samson/Centurion that has the cutout and puts rail under but not beyond. Quote HistoryQuoted:
Quoted:
It's a one piece rail but is possible to install the FSB with taper pins if you mod it correctly. I have instructions on this page above and probably in this thread as well. I can also answer any questions you have and my offer still stands to do the mod for you. Everything would line up perfect with a Mk8 15: https://www.AR15.Com/media/mediaFiles/138579/16-330070.JPG They just started making the Mk14 with anti-rotation tabs. They're all OOS since Geissele is sending them to people who had problem rails, who knows how long until they're available. Either way, let's make FSP cutout rails great again, America! I plan on doing a Kino 12.5" setup SBR soon, and am trying to decide if I am going with a rail that is full pocket (of which there are few in midlength config) or something like a Samson/Centurion that has the cutout and puts rail under but not beyond. You're looking for something like the Mk18 RIS II FSP but for a midlength FSB, like an 11.5" rail? |
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Posted: 10/16/2017 12:09:46 PM EDT
[#42]
Thinking of doing this with a CMR on a midlength. I'd like to use a 13" MLOK version, but if that won't work I'll step up to a 14.25" original model.
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Posted: 10/17/2017 10:16:07 AM EDT
[#43]
Quote HistoryQuoted:
You may not need it for accessories, but it is only 1.4 oz heavier than a 13" and you have more of the barrel covered and more hand guard available to rest on surfaces while shooting. You're looking for something like the Mk18 RIS II FSP but for a midlength FSB, like an 11.5" rail? Plus this: https://www.centurionarms.com/product-p/0609-mc.htm Would look really cool IMO. EDIT: Found a pic. Basically this: 
and another good one (bottom one) 
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Posted: 10/17/2017 3:29:08 PM EDT
[#44]
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Posted: 11/5/2017 10:26:24 AM EDT
[#45]
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Posted: 11/5/2017 4:41:30 PM EDT
[#46]
Guess who finally switched from photofuck'it?? Swapped out the BCM 16" standard for a 14.5" Colt Socom w/ Adco Spacer and Pinned A2
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Posted: 11/8/2017 10:55:33 AM EDT
[#47]
Quote History |
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Posted: 11/8/2017 12:17:31 PM EDT
[#48]
Quote HistoryQuoted:
Which rail is this? Also, why so few slots after the FSB? Not sure what you could even mount other than an offset light on there. It almost looks as if that rail is intended for a piston gun and the cutout is to adjust the piston, then the front two pic slots are for your iron. But I am just guessing, I didn't have a say in its design. Still, I like it. Not your typical rail, and it clamps directly on a standard barrel nut. PIC THREAD You can see the underside a little better in this pic. My guess is it is cutout to allow you to mount a bayonet.  Attached File |
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Posted: 11/10/2017 9:04:38 AM EDT
[#49]
Thanks man. Yea I had one of the MI Gen 2 pocket rails in FDE and was not impressed. Lots of sharp, jagged edges, burs and such, and the coating was suspect. Not to mention that when I removed all of the bolts holding the bottom together, two of the thread inserts broke pieces off and fell out. It was enough for me to sell it and commit to only buying the DD/Centurion and other quality folks. I was disappointed because I had heard MI had such good quality and was a real value for the price point.
Your rifle looks great btw. I think you could get the right offset light mount on the front two rail sections. |
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Posted: 11/10/2017 10:19:55 AM EDT
[#50]
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