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Posted: 6/27/2020 4:24:07 PM EDT
[#1]
Quote HistoryQuoted: That looks super nice. How hard was it to get the pins back in the FSB? Quote HistoryQuoted: Quoted: Quoted: I wanting to get a 13" rail, and have it cut for an FSB at the mid-length location (cut similarly to the RIS II FSP). I would have it professionally cut, and installed. Thoughts on this? Ideally I would use a BCM MCMR, but I'm somewhat worried about rigidity. I'm also considering a Geissele MK8. https://live.staticflickr.com/1484/26104091475_62cfba9fc6_o.jpg That looks super nice. How hard was it to get the pins back in the FSB? Nothin' to it. |
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Posted: 6/27/2020 4:29:03 PM EDT
[#2]
Quote HistoryQuoted: The biggest thing is access to how you are going to mount the FSB. Either holes or M-LOK slots that line up with the taper pins or screws on the sides or M-LOK slots that line up with set screws on the bottom. I don't know if the MCMR allows either. Quote HistoryQuoted: Quoted: I wanting to get a 13” rail, and have it cut for an FSB at the mid-length location (cut similarly to the RIS II FSP). I would have it professionally cut, and installed. Thoughts on this? Ideally I would use a BCM MCMR, but I’m somewhat worried about rigidity. I’m also considering a Geissele MK8. The biggest thing is access to how you are going to mount the FSB. Either holes or M-LOK slots that line up with the taper pins or screws on the sides or M-LOK slots that line up with set screws on the bottom. I don't know if the MCMR allows either. I wouldn’t have a problem with some holes being drilled in order to access the pins if that’s what it would take. |
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Posted: 6/27/2020 4:29:42 PM EDT
[#3]
Quote HistoryQuoted: If you leave the crossbolts out, you can use the holes in the lower portion of the rail to line up your taper pins. Nothin' to it. Quote HistoryQuoted: Quoted: Quoted: Quoted: I wanting to get a 13" rail, and have it cut for an FSB at the mid-length location (cut similarly to the RIS II FSP). I would have it professionally cut, and installed. Thoughts on this? Ideally I would use a BCM MCMR, but I'm somewhat worried about rigidity. I'm also considering a Geissele MK8. https://live.staticflickr.com/1484/26104091475_62cfba9fc6_o.jpg That looks super nice. How hard was it to get the pins back in the FSB? Nothin' to it. Awesome, thanks. |
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Posted: 6/27/2020 5:36:45 PM EDT
[#4]
Quote HistoryQuoted: Awesome, thanks. Quote HistoryQuoted: Quoted: Quoted: Quoted: Quoted: I wanting to get a 13" rail, and have it cut for an FSB at the mid-length location (cut similarly to the RIS II FSP). I would have it professionally cut, and installed. Thoughts on this? Ideally I would use a BCM MCMR, but I'm somewhat worried about rigidity. I'm also considering a Geissele MK8. https://live.staticflickr.com/1484/26104091475_62cfba9fc6_o.jpg That looks super nice. How hard was it to get the pins back in the FSB? Nothin' to it. Awesome, thanks. The MK8 isn't quite as easy. You can probably find my post about it in this thread or this thread. |
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Posted: 7/4/2020 6:29:59 PM EDT
[#5]
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Posted: 7/4/2020 6:37:09 PM EDT
[#6]
11.5” with Centurion Arms C4 Carbine Length Rail:
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Posted: 7/7/2020 10:24:15 PM EDT
[#7]
 IWC handstop is next to be added. I really like the handguard, just wish Aero had put a little more M-Lok slots on the 7” hg. |
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Posted: 7/8/2020 2:03:48 PM EDT
[#8]
Quote HistoryLove it. Glad to see the rail again. |
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Posted: 7/8/2020 8:23:37 PM EDT
[#9]
Quote HistoryQuoted: Love it. Glad to see the rail again. Quote HistoryQuoted: Love it. Glad to see the rail again.  It's been absolutely flawless, and this is one my favorite builds I've ever done. It checks all the right boxes for me. |
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Posted: 7/9/2020 11:41:46 AM EDT
[#10]
Quote HistoryQuoted: It's been absolutely flawless, and this is one my favorite builds I've ever done. It checks all the right boxes for me. Awesome. I'll always laugh at how tight the clearance is at the front of the slot. |
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Posted: 7/9/2020 9:24:26 PM EDT
[#11]
Quote HistoryQuoted: Awesome. I'll always laugh at how tight the clearance is at the front of the slot.  Hasn't had an adverse effect on accuracy though. |
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Posted: 7/27/2020 11:45:14 AM EDT
[#12]
My son at Benning spec'ed this work gun from Nez R. in Austin. Nez builds proven state and national champion barrels, to include for the President's Match champion.
It's a 16-inch mid-length, turned and chambered from a blank to dead-nuts true and hard-nitrided for longevity. It's got an ARMS 41 folding front sight (the irons are strictly for back-up) and will be topped with a Sig 1-6x DM scope in Geissele mount. He'll mount his AN/PEQ-15 in front of the front sight. Potato photos:  Attached File Attached File10-shot group in the 9-ring at 6-o'clock (77-grain ammo, 200 yards on the SR-C target):  Attached File |
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Posted: 7/27/2020 12:32:41 PM EDT
[#13]
Quote HistoryQuoted: My son at Benning spec'ed this work gun from Nez R. in Austin. Nez builds proven state and national champion barrels, to include for the President's Match champion. It's a 16-inch mid-length, turned and chambered from a blank to dead-nuts true and hard-nitrided for longevity. It's got an ARMS 41 folding front sight (the irons are strictly for back-up) and will be topped with a Sig 1-6x DM scope in Geissele mount. He'll mount his AN/PEQ-15 in front of the front sight. Potato photos: https://www.AR15.Com/media/mediaFiles/18978/Victor_sSPR_jpg-1521349.JPG https://www.AR15.Com/media/mediaFiles/18978/Victor_sSPR2_jpg-1521350.JPG I won't take credit for inspiring this, but I am extremely happy to see another A.R.M.S. folder hiding inside a free-float rail. Nice work, my friend. Was there any modification required to the FSB for fitment inside the SLR? I had to go full "Dremel-Fu" on mine to get it to fit in the CMR due to the tight inner diameter. 
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Posted: 7/29/2020 7:43:54 AM EDT
[#14]
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Posted: 8/10/2020 8:05:41 PM EDT
[#15]
Coming Soon!
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Posted: 8/10/2020 8:40:20 PM EDT
[#16]
 Long Boi |
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Posted: 8/12/2020 12:34:15 AM EDT
[#17]
Just picked up this BCM Kino off of the EE. Made some part swaps and waiting for a C4 MLok Mid Cutout to get here.
 20200807_220444 by Tango Charlie, on Flickr |
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Posted: 8/14/2020 12:43:12 PM EDT
[#18]
Here's my LMT with DD FSP rail put together by Denny from Denny's Guns. Also have a Bushmaster 20" 1/7 upper with another DD rail and a Vltor folding FSP.
Does anyone have a pic of a Colt 11.5 upper with a RIS II FSP mounted? Does the flash hider extend past the rail?? Thanks.   
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Posted: 8/14/2020 3:39:05 PM EDT
[#19]
Quote HistoryQuoted: Here's my LMT with DD FSP rail put together by Denny from Denny's Guns. Also have a Bushmaster 20" 1/7 upper with another DD rail and a Vltor folding FSP. Does anyone have a pic of a Colt 11.5 upper with a RIS II FSP mounted? Does the flash hider extend past the rail?? Thanks. https://www.AR15.Com/media/mediaFiles/36006/092-1546003.jpg https://www.AR15.Com/media/mediaFiles/36006/010-1087414.jpg https://www.AR15.Com/media/mediaFiles/36006/089-1546004.jpg The muzzle device would be nearly completely under the rail. |
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Posted: 8/14/2020 4:08:33 PM EDT
[#20]
Quote HistoryQuoted: The muzzle device would be nearly completely under the rail. Quote HistoryQuoted: Quoted: Here's my LMT with DD FSP rail put together by Denny from Denny's Guns. Also have a Bushmaster 20" 1/7 upper with another DD rail and a Vltor folding FSP. Does anyone have a pic of a Colt 11.5 upper with a RIS II FSP mounted? Does the flash hider extend past the rail?? Thanks. https://www.AR15.Com/media/mediaFiles/36006/092-1546003.jpg https://www.AR15.Com/media/mediaFiles/36006/010-1087414.jpg https://www.AR15.Com/media/mediaFiles/36006/089-1546004.jpg The muzzle device would be nearly completely under the rail. Maybe Daniel Defense could be convinced to run some MK18 FSP Rails  
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Posted: 8/14/2020 4:34:29 PM EDT
[#21]
Quote HistoryQuoted: The muzzle device would be nearly completely under the rail. Quote HistoryQuoted: Quoted: Here's my LMT with DD FSP rail put together by Denny from Denny's Guns. Also have a Bushmaster 20" 1/7 upper with another DD rail and a Vltor folding FSP. Does anyone have a pic of a Colt 11.5 upper with a RIS II FSP mounted? Does the flash hider extend past the rail?? Thanks. https://www.AR15.Com/media/mediaFiles/36006/092-1546003.jpg https://www.AR15.Com/media/mediaFiles/36006/010-1087414.jpg https://www.AR15.Com/media/mediaFiles/36006/089-1546004.jpg The muzzle device would be nearly completely under the rail. This. A 12.5” barrel may not even be enough, the shoulder for the muzzle device would still be 0.125 under the rail. |
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Posted: 8/15/2020 8:12:11 AM EDT
[#22]
Quote HistoryQuoted: Maybe Daniel Defense could be convinced to run some MK18 FSP Rails https://i.imgur.com/QyRwvfK.jpg Quote HistoryQuoted: Quoted: Quoted: Here's my LMT with DD FSP rail put together by Denny from Denny's Guns. Also have a Bushmaster 20" 1/7 upper with another DD rail and a Vltor folding FSP. Does anyone have a pic of a Colt 11.5 upper with a RIS II FSP mounted? Does the flash hider extend past the rail?? Thanks. https://www.AR15.Com/media/mediaFiles/36006/092-1546003.jpg https://www.AR15.Com/media/mediaFiles/36006/010-1087414.jpg https://www.AR15.Com/media/mediaFiles/36006/089-1546004.jpg The muzzle device would be nearly completely under the rail. Maybe Daniel Defense could be convinced to run some MK18 FSP Rails https://i.imgur.com/QyRwvfK.jpg Thanks guys, so either replace the FSP and get some 10"ish rail or go with a KAC M4 RAS or similiar. That MK18 FSP is damn sexy though!!!! |
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Posted: 8/15/2020 8:45:39 AM EDT
[#23]
Quote HistoryQuoted: Thanks guys, so either replace the FSP and get some 10"ish rail or go with a KAC M4 RAS or similiar. That MK18 FSP is damn sexy though!!!! KAC FF RAS carbine or medium would be ?? |
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Posted: 8/28/2020 6:49:38 PM EDT
[#24]
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Posted: 8/29/2020 10:43:51 AM EDT
[#25]
 Added a KAC tri mount to the MRE |
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Posted: 8/29/2020 2:07:16 PM EDT
[#26]
Does anybody have experience with the extended Spartan rail from ARMS?
They work with mid length FSB or has a removable top section for carbine length FSB. ARMS hasn’t responded to two emails where I’ve asked for the weight. There isn’t a lot of info out there. http://armsmounts.com/shop/rail-systems/r-m-s-56m-cv-m-spartan-rail/ 
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Posted: 9/7/2020 6:13:49 PM EDT
[#27]
Old-school RRA build, not one that had the FF tube already installed.
 This was way before the MLOK days. |
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Posted: 9/7/2020 9:21:49 PM EDT
[#28]
Ha! I had no idea there was even a thread for this.
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Posted: 9/8/2020 1:41:56 AM EDT
[#29]
I think my post count is to low to post a picture but I'll give it a shot.
Daniel Defense 9.5" fsp lite rail, barrel is a colt fbi 11.5 fat boy.  
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Posted: 9/30/2020 3:05:46 PM EDT
[#30]
Quote HistoryQuoted: Does anybody have experience with the extended Spartan rail from ARMS? They work with mid length FSB or has a removable top section for carbine length FSB. ARMS hasn’t responded to two emails where I’ve asked for the weight. There isn’t a lot of info out there. http://armsmounts.com/shop/rail-systems/r-m-s-56m-cv-m-spartan-rail/ http://armsmounts.com/wp-content/uploads/2019/10/56mcv-m-mod-style.jpg No experience with this one in particular, but in my general experience with their rails, they are fat and heavy. This one is listed as 16oz on their website. That's a full "one pounder." By contrast, the midlength C4 quad rail in my initial page one post is about a quarter pound lighter. If you look at the M-lok version, that one is 8.9oz, almost half the weight of the A.R.M.S. Always remember, Ounces = Pounds... Pounds = Pain. Personally, I'd pass on that rail, but it's really up to you and your own personal requirements. If weight and overall beefiness is not a factor, then roll with it. |
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Posted: 9/30/2020 3:10:13 PM EDT
[#31]
Quote HistoryWelcome... "Knowing is half the battle, my friend." - G.I. Jose Nice job. |
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Posted: 9/30/2020 3:15:13 PM EDT
[#32]
Quote HistoryQuoted: I think my post count is to low to post a picture but I'll give it a shot. Daniel Defense 9.5" fsp lite rail, barrel is a colt fbi 11.5 fat boy. https://i.imgur.com/poh7qKK.jpg https://i.imgur.com/wBTdaRN.jpg @Mr_Wrong I'll try to fix that second broken image link for you:  Pretty epic for a first time image post. Sick build, brother. I hereby dub thee "Swamp Thing Jr." |
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Posted: 9/30/2020 3:30:50 PM EDT
[#33]
Quote HistoryQuoted: No experience with this one in particular, but in my general experience with their rails, they are fat and heavy. This one is listed as 16oz on their website. That's a full "one pounder." By contrast, the midlength C4 quad rail in my initial page one post is about a quarter pound lighter. If you look at the M-lok version, that one is 8.9oz, almost half the weight of the A.R.M.S. Always remember, Ounces = Pounds... Pounds = Pain. Personally, I'd pass on that rail, but it's really up to you and your own personal requirements. If weight and overall beefiness is not a factor, then roll with it. Quote HistoryQuoted: Quoted: Does anybody have experience with the extended Spartan rail from ARMS? They work with mid length FSB or has a removable top section for carbine length FSB. ARMS hasn’t responded to two emails where I’ve asked for the weight. There isn’t a lot of info out there. http://armsmounts.com/shop/rail-systems/r-m-s-56m-cv-m-spartan-rail/ http://armsmounts.com/wp-content/uploads/2019/10/56mcv-m-mod-style.jpg No experience with this one in particular, but in my general experience with their rails, they are fat and heavy. This one is listed as 16oz on their website. That's a full "one pounder." By contrast, the midlength C4 quad rail in my initial page one post is about a quarter pound lighter. If you look at the M-lok version, that one is 8.9oz, almost half the weight of the A.R.M.S. Always remember, Ounces = Pounds... Pounds = Pain. Personally, I'd pass on that rail, but it's really up to you and your own personal requirements. If weight and overall beefiness is not a factor, then roll with it. That 1 pound listed in the “Additional Information” section for the Spartan rail may not be accurate. In the specs for some the S.I.R. rails, for example, the weight listed in the Additional Information section is much heavier than the listed weight in the description. The basic carbine SIR is said to be 8.6oz but the other section lists 1.1875 pounds and a length x width x height. Almost like it’s a shipping weight and dimensions. ARMS phone lines appear to be down so I emailed them right after I made that post to get an accurate weight on that Spartan rail but haven’t heard back. |
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Posted: 9/30/2020 3:47:27 PM EDT
[#34]
Quote HistoryQuoted: That 1 pound listed in the “Additional Information” section for the Spartan rail may not be accurate. In the specs for some the S.I.R. rails, for example, the weight listed in the Additional Information section is much heavier than the listed weight in the description. The basic carbine SIR is said to be 8.6oz but the other section lists 1.1875 pounds and a length x width x height. Almost like it’s a shipping weight and dimensions. ARMS phone lines appear to be down so I emailed them right after I made that post to get an accurate weight on that Spartan rail but haven’t heard back. Keep us posted on what they say. It would be good if they figured out how to lighten things up. I know the old stuff was hefty. |
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Posted: 9/30/2020 3:48:48 PM EDT
[#35]
We need more pics of builds, people. Post up your FSB Corona Cannons!
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Posted: 9/30/2020 3:54:55 PM EDT
[#36]
Waiting on John Thomas to chop this Armalite SR25 fiberglass tube with custom barrel nut to fit small frame uppers down to carbine length. 14.5 Colt Socom with OG B.E. Meyers 249F
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Posted: 9/30/2020 4:01:56 PM EDT
[#37]
I have parts inbound Saturday
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Posted: 9/30/2020 4:02:31 PM EDT
[#38]
Quote HistoryQuoted: Waiting on John Thomas to chop this Armalite SR25 fiberglass tube with custom barrel nut to fit small frame uppers down to carbine length. 14.5 Colt Socom with OG B.E. Meyers 249F https://i.postimg.cc/P55Rxs3D/PXL-20200929-141835529.jpg This is going to be so sick |
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Posted: 9/30/2020 4:38:43 PM EDT
[#39]
Scribed!
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Posted: 9/30/2020 5:26:48 PM EDT
[#40]
Quote HistoryQuoted: This is going to be so sick Cloning this look. Middle left. Pic is grainy when I qzoom in so I can't quite make out some details like rear sight and VFG. 
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Posted: 9/30/2020 10:44:44 PM EDT
[#41]
Quote HistoryQuoted: Does anybody have experience with the extended Spartan rail from ARMS? They work with mid length FSB or has a removable top section for carbine length FSB. ARMS hasn’t responded to two emails where I’ve asked for the weight. There isn’t a lot of info out there. http://armsmounts.com/shop/rail-systems/r-m-s-56m-cv-m-spartan-rail/ http://armsmounts.com/wp-content/uploads/2019/10/56mcv-m-mod-style.jpg Quote HistoryQuoted: Does anybody have experience with the extended Spartan rail from ARMS? They work with mid length FSB or has a removable top section for carbine length FSB. ARMS hasn’t responded to two emails where I’ve asked for the weight. There isn’t a lot of info out there. http://armsmounts.com/shop/rail-systems/r-m-s-56m-cv-m-spartan-rail/ http://armsmounts.com/wp-content/uploads/2019/10/56mcv-m-mod-style.jpg Idk but the setup in the pic looks sick! Quoted: I think my post count is to low to post a picture but I'll give it a shot. Daniel Defense 9.5" fsp lite rail, barrel is a colt fbi 11.5 fat boy. https://i.imgur.com/poh7qKK.jpg Excellent! |
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Posted: 9/30/2020 11:12:08 PM EDT
[#42]
Quote HistoryQuoted: Cloning this look. Middle left. Pic is grainy when I qzoom in so I can't quite make out some details like rear sight and VFG. https://i.postimg.cc/jjx81vjW/delta-force-afghanistan.jpg Is it a KAC 300m? |
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Posted: 10/1/2020 10:31:34 AM EDT
[#43]
Quote HistoryQuoted: Is it a KAC 300m? That's what I think it is, but picture quality isn't good enough for definitive ID. And the VFG has so much crap wrapped on it that it's anyone's guess what it is. |
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Posted: 10/3/2020 11:33:21 AM EDT
[#44]
BCM QRF 7" on LE6920:
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Posted: 10/3/2020 11:44:59 AM EDT
[#45]
Quote HistoryQuoted: BCM QRF 7" on LE6920: https://www.AR15.Com/media/mediaFiles/278546/845EBC7C-FA3E-425E-868E-6175B5A965B4-1611580.jpg Nice. How do you like that Larue foregrip? Curious how easy/difficult it is to reach the tailcap on your light. |
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Posted: 10/3/2020 12:03:18 PM EDT
[#46]
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Posted: 10/3/2020 1:14:13 PM EDT
[#47]
Quote HistoryOoh, babybabybabybaby. I'm digging it. This build fueled by a steady supply of "Liberal Tears", I see. Love it. |
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Posted: 10/3/2020 2:28:31 PM EDT
[#48]
I like fsp free floats too! Top picture is a DD M4 fsp rail that I had Chop Boss convert to MK18 length. Second pic is one of my m4a1 clones. And bottom pic is a free float LWRC rail
  
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Posted: 10/3/2020 3:21:25 PM EDT
[#49]
My first AR, I still want to change the handguard out, but haven’t found an option that I’m completely happy with yet.
That’s a DD Omega 9 on there now. 
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Posted: 10/3/2020 4:58:27 PM EDT
[#50]
Quote HistoryQuoted: My first AR, I still want to change the handguard out, but haven't found an option that I'm completely happy with yet. That's a DD Omega 9 on there now. https://i.imgur.com/spQAunV.jpg |
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