View Full Version : BCM QRF quad rail
Since I’m picking out parts for my next build I’m trying to decide between getting the 14.5” M4 SOCOM upper with either a free floT QRF quad rail or just getting the upper without a hand guard but with a delta ring where I can put my own hand guard on. I like Midwest industries drop in quad rail if I went that route because it has a pretty sleek profile. I can’t find much on the QRF and I’m wondering if the profile is the same? I see the QRF is a tad bit lighter which I also like. For either configuration I am going with a pinned flash suppressor as well as a fixed A2 front sight on both. Thanks a bunch.
justin_247
03-02-18, 18:25
Since I’m picking out parts for my next build I’m trying to decide between getting the 14.5” M4 SOCOM upper with either a free floT QRF quad rail or just getting the upper without a hand guard but with a delta ring where I can put my own hand guard on. I like Midwest industries drop in quad rail if I went that route because it has a pretty sleek profile. I can’t find much on the QRF and I’m wondering if the profile is the same? I see the QRF is a tad bit lighter which I also like. For either configuration I am going with a pinned flash suppressor as well as a fixed A2 front sight on both. Thanks a bunch.
BCM has the specs on their website:
https://www.bravocompanyusa.com/Midwest-Industries-MCTAR-20G2-p/mctar-20g2.htm
MI Gen2 Two Piece Free Float Handguard - 7" Carbine - #MCTAR-20G2
The Ultimate 2 Piece Free Float Handguard Weighing just 9.0oz!
Weight - 9 ounces
Length - 7.0 inches
Width - 2.3 inches
Height - 2.43 inches
https://www.bravocompanyusa.com/BCM-QRF-7-Quad-Rail-Free-Float-Handguard-p/bcm-qrf-7-556-blk.htm
BCM QRF-7 (Quad Rail Free Float Handguard)
Handguard alone weighs 6.9 oz
Actual length is 7.24"
2.12" Wide
I think someone on the forum said their QRF had a height of 2 3/8".
Thank you that helps. A complete 14.5 M4 upper with the QRF free float quad rail would have cost $607 from G&R tactical whereas the M4 upper with the MI Gen2 quad rail would cost me $530. Because of that I went with the latter.
Thank you that helps. A complete 14.5 M4 upper with the QRF free float quad rail would have cost $607 from G&R tactical whereas the M4 upper with the MI Gen2 quad rail would cost me $530. Because of that I went with the latter.
I know you went with the MI rail, but since I just got an upper with the QRF rail I thought I’d share my thoughts. Mine is on a mid-length so it’s the 9”. It appears to be very sturdy, but also pretty light. The slots are all numbered (T, R, B, L) and the color matches the BCM receiver perfectly. Hope this helps someone if they are trying to decide on a full pic rail.
https://uploads.tapatalk-cdn.com/20180309/bc909ce3662c8da0abf4cb3ef4eaf0c5.jpg
https://uploads.tapatalk-cdn.com/20180309/911371b47e35bc9ec5ae0176b20937b2.jpg
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While it is a nice rail I actually couldn’t get it in the configuration I wanted. I went with a Daniel Defense Omega 7” Rail got it for $170 shipped.
I just saw the email from BCM on their M4 uppers with the QRF rail. I haven't seen one yet but it looks nice. I might grab a 7.0 for one of the SBRs or my BCM SOCOM 14.5" upper.
I just saw the email from BCM on their M4 uppers with the QRF rail. I haven't seen one yet but it looks nice. I might grab a 7.0 for one of the SBRs or my BCM SOCOM 14.5" upper.
Yea, for the mounting system alone the BCM product is a no-brainer for 10 bucks more than the DD product.
Five_Point_Five_Six
09-11-19, 11:10
I still love quad rails. I have a QRF 10 and a MCMR 10 and if you made me pick just one it would be hard.
MLOK is practical, but 1913 says I like to boogie.
I may scoop up the QRF 7 and replace my Geissele Mk4 or whatever it is.
I just saw the email from BCM on their M4 uppers with the QRF rail. I haven't seen one yet but it looks nice. I might grab a 7.0 for one of the SBRs or my BCM SOCOM 14.5" upper.
https://66.media.tumblr.com/58815fd1be7fab31218b35036b650a59/tumblr_pxp3l7JY7P1rrcg2fo1_1280.jpg
Nice. That's on my fall shopping list.
I finally had a reason to grab one of these rails, and I'm really pleased with it.
https://i.imgur.com/OS85xcB.jpg
I still love quad rails.
I do, too.
Then again I still listen to/enjoy Alice in Chains, so ...
I wouldn't buy anything but a quad rail right now.
OldGrayGuy
06-22-20, 08:11
I've had good (but pretty limited) performance from my 11.5" BCM upper and was looking at picking up a 14.5" with MLOK in the near future. Mark, what is your reason for preferring quad rail at this time?
I'm with Mark for a blaster.
Most free-floats conduct heat through the barrel nut into the rail, regardless of make (even worse with monolithic uppers). With a quad I can put a Knight cover at 6-o'clock and Ergo ladders on the side to keep the profile thin with a little heat insulation.
I like the Larues for a thin profile and short bottom-to-bore line, followed by Daniels and BCM neck-and-neck. The Midwest Industries are also right up there.
I like Geisseles for their hell-for-strong, but the distance-humping foot soldier in me doesn't like the bulky/flat boss just forward of the magazine well and where the traditional slip-ring would be for just plain rucking, toting, and carrying the darn thing.
If I want a slick, smooth profile I'll use an SLR Rifleworks Ion.
I know you went with the MI rail, but since I just got an upper with the QRF rail I thought I’d share my thoughts. Mine is on a mid-length so it’s the 9”. It appears to be very sturdy, but also pretty light. The slots are all numbered (T, R, B, L) and the color matches the BCM receiver perfectly. Hope this helps someone if they are trying to decide on a full pic rail.
https://uploads.tapatalk-cdn.com/20180309/bc909ce3662c8da0abf4cb3ef4eaf0c5.jpg
https://uploads.tapatalk-cdn.com/20180309/911371b47e35bc9ec5ae0176b20937b2.jpg
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I’ll take a moment to comment on this old thread that I find that to be an incredibly good looking carbine.
I'm with Mark for a blaster.
Most free-floats conduct heat through the barrel nut into the rail, regardless of make (even worse with monolithic uppers). With a quad I can put a Knight cover at 6-o'clock and Ergo ladders on the side to keep the profile thin with a little heat insulation.
I like the Larues for a thin profile and short bottom-to-bore line, followed by Daniels and BCM neck-and-neck. The Midwest Industries are also right up there.
I like Geisseles for their hell-for-strong, but the distance-humping foot soldier in me doesn't like the bulky/flat boss just forward of the magazine well and where the traditional slip-ring would be for just plain rucking, toting, and carrying the darn thing.
If I want a slick, smooth profile I'll use an SLR Rifleworks Ion.
No slight at all on your opinions, but if you haven’t tried Montys CMR rail as a smooth rail, it’s worth checking out. I’m a pretty huge fan still of quad rails, but his direct attach ( not to be confused with MLOK) is kinda special.
Mark, what is your reason for preferring quad rail at this time?
Just going back to what works best. I'm not dumping my Keymod. It's set up and the lights, sling mount, and finger stop aren't going anywhere.
With the good old pic rail, I was able to pop a bi pod on the gun this weekend without any effort.
Most free-floats conduct heat through the barrel nut into the rail, regardless of make (even worse with monolithic uppers). With a quad I can put a Knight cover at 6-o'clock and Ergo ladders on the side to keep the profile thin with a little heat insulation.
The only thing I'd change on the BCM is adding the cuts on the end slots for KAC panels to snap in. The chinese larue knock of clips are my 2nd choice.
Just going back to what works best. I'm not dumping my Keymod. It's set up and the lights, sling mount, and finger stop aren't going anywhere.
With the good old pic rail, I was able to pop a bi pod on the gun this weekend without any effort.
The only thing I'd change on the BCM is adding the cuts on the end slots for KAC panels to snap in. The chinese larue knock of clips are my 2nd choice.
Glad to hear you say Keymod. I’ve got a BCM KMR on every rifle I’ve got, with the exception of a URXIII that came on my AAC upper and triangle hand guards on a 20” build.
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I’ll take a moment to comment on this old thread that I find that to be an incredibly good looking carbine.
Thanks, it’s a great little blaster
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Hammer_Man
06-22-20, 12:17
You guys might want to check out Manta Defense rail guards. They're rubberized panels for pic rails you can cut to size, and they're embedded with a metal heat deflecting strip. I've used them on a few setups, and they work pretty well.
justin_247
06-23-20, 07:09
You guys might want to check out Manta Defense rail guards. They're rubberized panels for pic rails you can cut to size, and they're embedded with a metal heat deflecting strip. I've used them on a few setups, and they work pretty well.
"Heat deflecting metal strip"?
A 3-pack for $37!!!
https://mantadefense.com/product/very-low-profile-rail-guards-3-pack/
Ridiculous. You can get a pack of Ergo slim-line covers that cover the entire rail section with no exposed metal for $20, which even then is too much for what it is.
We've almost gotten to the point where machined aluminum rails may become less expensive than plastic rail panels.
Fudge! BCM is releasing some "prototype" QRFs with the ominous warning that there are no plans to make them in the future. I'm too long on carbean Pic rails and too leveraged on Gibson Les Pauls to buy one right now. :p
Fudge! BCM is releasing some "prototype" QRFs with the ominous warning that there are no plans to make them in the future. I'm too long on carbean Pic rails and too leveraged on Gibson Les Pauls to buy one right now. :p
I saw that as well..
What is the difference between the production QRFs and the prototype QRFs?
And are the regular QRFs also being discontinued?
I asked BCM a while back what the status of the QRFs and their future. Customer service gave me a canned non-answer.
1_click_off
10-06-23, 18:48
I ordered a 12” for a build I am starting.
Fudge! BCM is releasing some "prototype" QRFs with the ominous warning that there are no plans to make them in the future. I'm too long on carbean Pic rails and too leveraged on Gibson Les Pauls to buy one right now. :p
Yeah I saw that and I am a bit tapped out this month
Henry Porter
10-06-23, 20:11
What is the difference between the production QRFs and the prototype QRFs?
And are the regular QRFs also being discontinued?
I asked BCM a while back what the status of the QRFs and their future. Customer service gave me a canned non-answer.
I wondered the same thing, but I’ve been watching for these for so long that I jumped on a 9” for my Kino anyway. Don’t want to see them go out of stock while I wait to find out.
The only difference I can see is the areas between the pic rail sections. The cutouts are oval on the prototype vs circular on the regular production.
My assumption has been, since the updated handguard prototype was shared in a special Black Powder Red Earth collaboration a few months ago, that BCM is responding to the flex claimed to be seen in their handguards when used for lasers. That means beefing up the handguard at least around the base and/or lengthening the barrel nut.
BCM seems to be exceptionally stubborn about things when faced with criticism toward their own designs (keymod, Mk2 upper), so I would except only the absolute minimum in changes needed to respond to the problem. Note, I use “problem” intentionally, since “issue” or “concern” don’t acknowledge that in the context of use (lasers) their design is lacking. And because it would rankle them.
*I really like BCM products and use their handguards without concerns. They’re just…arrogant.
BCM seems to be exceptionally stubborn about things when faced with criticism toward their own designs (keymod, Mk2 upper)
What is the criticism of the Mk2 upper?
What is the criticism of the Mk2 upper?
That some handguards don’t fit without a file. It deviated from military standard dimensions where some anti-rotation tabs fit. Which was kind of the point.
I ordered a 12” for a build I am starting.
I'd like to grab one of those. The Geissele version is over $500.
Fudge! BCM is releasing some "prototype" QRFs with the ominous warning that there are no plans to make them in the future. I'm too long on carbean Pic rails and too leveraged on Gibson Les Pauls to buy one right now. :p
I just bought a 12” one. They looked cool, I like the different cooling slots. I can tell they required more machine time than the production version.
https://media.discordapp.net/attachments/947133312084889653/1162113831644967124/IMG_8795.jpg?ex=653ac1d8&is=65284cd8&hm=7884a335ebfac41701ba41907f372809f6937bc3dc2a09b29d2fca2cabbcf223&=&width=1920&height=451
https://media.discordapp.net/attachments/947133312084889653/1162113832265715863/IMG_8796.jpg?ex=653ac1d8&is=65284cd8&hm=6285031d25c79c3ea86100f5fe8ea5210f5bad828a637bf8c1f9081e47ff0cc9&=&width=935&height=897
Perfectly smooth on the inside, camera had tough time capturing
Hammer_Man
10-13-23, 09:48
What does it weigh?
Yes please, what is the complete weight with barrel nut? Thank you.
I'm going to rue not grabbing one of the 12" rails.
Yes please, what is the complete weight with barrel nut? Thank you.
With and without
https://media.discordapp.net/attachments/947133312084889653/1162397790207492137/IMG_8806.jpg?ex=653bca4d&is=6529554d&hm=03ecfe9e38945f89d309fc29fecbb3e901bc43fa4685599851013ace7bbf1323&=&width=672&height=896
https://media.discordapp.net/attachments/947133312084889653/1162397789360242718/IMG_8805.jpg?ex=653bca4d&is=6529554d&hm=f2aa2640a3035461e7528028d7f6654987879cd790677c25aced7dd1594b972d&=&width=672&height=896
Hammer_Man
10-13-23, 10:17
With and without
https://media.discordapp.net/attachments/947133312084889653/1162397790207492137/IMG_8806.jpg?ex=653bca4d&is=6529554d&hm=03ecfe9e38945f89d309fc29fecbb3e901bc43fa4685599851013ace7bbf1323&=&width=672&height=896
https://media.discordapp.net/attachments/947133312084889653/1162397789360242718/IMG_8805.jpg?ex=653bca4d&is=6529554d&hm=f2aa2640a3035461e7528028d7f6654987879cd790677c25aced7dd1594b972d&=&width=672&height=896
That’s lighter than I expected! Thanks!
I was pretty shocked too, I figured 14oz-ish since that's what most of the quads weigh
I was pretty shocked too, I figured 14oz-ish since that's what most of the quads weigh
I do remember my standard production 7.0 QRF being relatively light weight feeling.
Thanks. That's two and a half ounces lighter than the original Daniel Defense Lite Rail, and seven and a half ounces lighter than the Rainier Arms MK2 Quad is listed as. At $185 that seems like a great value.
Thanks. That's two and a half ounces lighter than the original Daniel Defense Lite Rail, and seven and a half ounces lighter than the Rainier Arms MK2 Quad is listed as. At $185 that seems like a great value.
I'm always skeptical. Do all of those great characteristics come at the expense of strength/durability? The longer the rail, the stronger I want it to be.
I'm always skeptical. Do all of those great characteristics come at the expense of strength/durability? The longer the rail, the stronger I want it to be.
That is one of the nice things about the SWS rails for precision shooting. I might not want a long heavy rail for patrol work, but when shooting steel, I have zero problems with the heavier models.
BufordTJustice
10-24-23, 18:20
With and without
https://media.discordapp.net/attachments/947133312084889653/1162397790207492137/IMG_8806.jpg?ex=653bca4d&is=6529554d&hm=03ecfe9e38945f89d309fc29fecbb3e901bc43fa4685599851013ace7bbf1323&=&width=672&height=896
https://media.discordapp.net/attachments/947133312084889653/1162397789360242718/IMG_8805.jpg?ex=653bca4d&is=6529554d&hm=f2aa2640a3035461e7528028d7f6654987879cd790677c25aced7dd1594b972d&=&width=672&height=896
V Seven makes a Ti BCM barrel nut that will save you ~40% of the weight of the BCM nut, if that matters to you.
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Grendelshooter
11-02-23, 06:45
So what’s the deal with BCM quad rails?
Is BCM stuff regularly unobtainable?
I feel like I’ve been waiting on these for 6 months. I keep checking to see if they’re in stock and I just didn’t get notified to no avail. I need a 12” quad rail for a project and I can’t find anything lighter than these, they’re just OOS everywhere
So what’s the deal with BCM quad rails?
Is BCM stuff regularly unobtainable?
Sometimes specific items are slow to get back in stock. But right now many mongoloids are drinking the Mlok Foolaid. Pic rails are starting to make a comeback, but the collective neurons of the AR flock have not fully started firing and realizing that Mlok is shit.
Sometimes specific items are slow to get back in stock. But right now many mongoloids are drinking the Mlok Foolaid. Pic rails are starting to make a comeback, but the collective neurons of the AR flock have not fully started firing and realizing that Mlok is shit.
Show us on the doll where M-LOK hurt you. :sarcastic:
So what’s the deal with BCM quad rails?
Is BCM stuff regularly unobtainable?
I feel like I’ve been waiting on these for 6 months. I keep checking to see if they’re in stock and I just didn’t get notified to no avail. I need a 12” quad rail for a project and I can’t find anything lighter than these, they’re just OOS everywhere
Between dealers buying them, and people buying them up, it is probably hard to keep anything in stock for BCM.
It does make me wonder what companies are seeing regarding sales. I mean, are quads becoming popular again like Mark and myself think they are? Or is it just wishful thinking on our part.
BufordTJustice
11-02-23, 17:31
Between dealers buying them, and people buying them up, it is probably hard to keep anything in stock for BCM.
It does make me wonder what companies are seeing regarding sales. I mean, are quads becoming popular again like Mark and myself think they are? Or is it just wishful thinking on our part.
I think 1913 is making a comeback, too.
So many people bought MLOK just to cover with railscales and such. Maybe mount a light. But more and more folks are realizing that the actual mounting and un-mounting mechanism really sucks.
I never, personally, abandoned KeyMod and it has served me extremely well when I was 10-8 and now that I have retired and moved into the private sector.
SO. MUCH. EASIER to mount and un-mount everything. Unless you are too dumb for duplos, you nearly can't do it incorrectly.
On Reddit (generally, a sh**hole), more and more beautiful quads are showing back up in images with the typically stupid questions of "Is my RIS II okay to use???". Lol
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I have a nice assortment of quads (DD RIS II, Larue…absolute best overall profile, and LMT MRP quads…second to the larue and might be identical). I also have a several M LOCK, mostly LMT MRP and one Geissele. I much prefer the quads for mounting, easy on off etc.. If you do a lot of shooting both a quad and M LOCK rail will “require” rail scales to keep the heat at bay.
So many people bought MLOK just to cover with railscales and such. Maybe mount a light. But more and more folks are realizing that the actual mounting and un-mounting mechanism really sucks.
How many people really have the need to repeatedly mount and unmount things, and of those how many would be served by attaching a single 1913 rail section to an M-LOK handguard?
I am curious what accessories are being regularly remounted or moved around, apart from those that go on the top rail.
BufordTJustice
11-02-23, 21:23
How many people really have the need to repeatedly mount and unmount things, and of those how many would be served by attaching a single 1913 rail section to an M-LOK handguard?
I am curious what accessories are being regularly remounted or moved around, apart from those that go on the top rail.
For the folks I keep in touch with, light/LAM/remote switch(es) setups are fairly dynamic as everyone figures out what works best for them for low light and/or no light use.
Balancing rail real estate, suppressor shadow, laser aiming module placement/function, switch location for the IR setup and white light setup, etc.
Even on my KeyMod KMR on my SBR, I recently upgraded to a Cloud Defensive Rein 3.0 setup. Getting light shadow over my can, mount position, mount selection (which Arisaka mount do i *REALLY* want? Lol), switch position all to my liking required a few iterations. KeyMod made this so easy.
Position, slide into place, engage recoil lug, tighten to 20 in/lbs, DONE. I personally iterated through about 5 configurations.
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Hammer_Man
11-03-23, 13:54
Personally I like 1913 rails because they seem more robust, and they seem to deal with heat better. I’m not opposed to M-lok as an attachment system, but I’m opposed to how skinny modern rails are made.
I dunno, I bought a keymod rail once when they were becoming popular, then I stuck a little section of picatinny rail onto it to mount a VFG, then I stuck another little section of rail on to mount a light. Then I thought, why the hell am I attaching sections of 1913 picatinny rail to the keymod rail and then attaching accessories to those, creating two attachment points per accessory when I could just simply stick with a quad rail and attach accessories direcly to it which would be a lot easier and probably a lot more solid. I never bought into the M-crock rail craze.
BufordTJustice
11-04-23, 16:46
I dunno, I bought a keymod rail once when they were becoming popular, then I stuck a little section of picatinny rail onto it to mount a VFG, then I stuck another little section of rail on to mount a light. Then I thought, why the hell am I attaching sections of 1913 picatinny rail to the keymod rail and then attaching accessories to those, creating two attachment points per accessory when I could just simply stick with a quad rail and attach accessories direcly to it which would be a lot easier and probably a lot more solid. I never bought into the M-crock rail craze.
I mean, YEAH. If you aren't going to move into the KeyMod ecosystem, it makes no sense to get a KM rail.
Just like if I have a bunch of KM or MLOK accessories and had to buy adapters to use them on my quadrail.
MLOK was designed by Magpul because they couldn't make KM work according to spec in polymer (because it was designed to function in metal only). Thus, MLOK is inherently over-built for metal handguards because it is designed to work in a vastly weaker medium.
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Between dealers buying them, and people buying them up, it is probably hard to keep anything in stock for BCM.
It does make me wonder what companies are seeing regarding sales. I mean, are quads becoming popular again like Mark and myself think they are? Or is it just wishful thinking on our part.
I'm almost done migrating my rifles back to quads from MLOK. BCM, MI and Centurion. I wanted to buy more BCMs but could never find them in stock. So MI went on my X39 builds. Not complaining, mind you. I never fell in love with the MLOK system.
1_click_off
03-10-24, 18:33
Built the upper out today.
BCM blem upper.
BCM QRF 12”
Ballistic Advantage Modern Series 16" 5.56 NATO Government Contour 1:7 Nitride Mid-Length
Aero gas tube
BCM low profile gas block
Colt BCG
Donor Colt charge handle
Forward controls 6315KM-S
Precision Armament shim kit (worth every penny, I HATE shimming muzzle devices)
Passes go no-go gauges and function checks with a CR6920 lower.
Seems like a decent rail, it does have some symmetrical issues and odd machining on it. If looking from the muzzle to breech the vertical transitions from the rounded tube to the upper rail are noticeably different thicknesses. Almost to the point one would think is could be a weak point. I guess the best way to describe the entire rail is like the outside dimensions of the rails and center line of the bore is correct, but the work piece was not centered in the chuck before the machine work started. It will be fine for my uses, but it would drive an OCD person bonkers. The fit and lockup to the upper was spot on and very nice.
It will be fine for my uses, but it would drive an OCD person bonkers. The fit and lockup to the upper was spot on and very nice.
You'll have to get some pics up. I love the QRF. I only wish it was thicker in the rail walls. The QRF is nowhere near as thin as the Otis rail I just got, but it's not as beefy as a RAS. I've never had any issues with mine, and I run it almost every weekend. I just feel better with an over-built rail.
I'm almost done migrating my rifles back to quads from MLOK. BCM, MI and Centurion. I wanted to buy more BCMs but could never find them in stock. So MI went on my X39 builds. Not complaining, mind you. I never fell in love with the MLOK system.
Mind if I ask why you're going away from Mlok or Keymod?
Sounds like he tried Mlok and didn't like it. I left my Keymods as is because I don't really move lights and stuff around. Pic rail is still the best option there is as far as durability and grunt proof attachment.
Mind if I ask why you're going away from Mlok or Keymod?
I also did. I found that while most MLOK rails feel great when you’re not shooting, or for the first couple mags, most of them go downhill fast with heat. Even with covers. And especially with covers that have exposed screws. Might as well be touching a FSB.
1_click_off
03-11-24, 23:08
You'll have to get some pics up. I love the QRF. I only wish it was thicker in the rail walls. The QRF is nowhere near as thin as the Otis rail I just got, but it's not as beefy as a RAS. I've never had any issues with mine, and I run it almost every weekend. I just feel better with an over-built rail.
71490
Unsymmetrical area I spoke about earlier.
71491
71492
71493
This last pic shows a close up of the built in heat shield. At least I assume that is what its purpose is.
I clipped the muzzle out because I didn’t have fresh rocksett and awaiting a new bottle. So I didn’t want to answer why I timed it crooked. It is just hand tight at this point.
Some go back to heavier quad rails…others move forward to lighter and heat resistant carbon fiber.
I think the issue with carbon fiber is the potential shattering if stuck by artillery. So I’m pretty sure I’m good.
Unsymmetrical area I spoke about earlier.
Yikes. This is a prototype though right? I think I'd forget about that part if the rail still mounted straight as an arrow.
Some go back to heavier quad rails…others move forward to lighter and heat resistant carbon fiber.
I think the issue with carbon fiber is the potential shattering if stuck by artillery. So I’m pretty sure I’m good.
I’ve heard that carbon fiber is much more conductive than one would expect…is that not so? Is the way yours is attached to the metal hardware well suited to use with lasers?
1_click_off
03-12-24, 12:25
Yikes. This is a prototype though right? I think I'd forget about that part if the rail still mounted straight as an arrow.
Correct, I assume they had a pile of “we were so close to getting it right” and couldn’t just scrap them. Like I said, I can work with it and not a big deal.
I’ve heard that carbon fiber is much more conductive than one would expect…is that not so? Is the way yours is attached to the metal hardware well suited to use with lasers?
I have the Smoke Composites with 1913 rail on the top. Eh. I would probably not mount a laser on it. I can’t say that it is flexing more than an aluminum M-look handguard, but probably. But I’d stick with the URX4 with a laser.
As far as conductivity, using a 6720 barrel, I had no trouble holding on for far more rounds than the 6960. Not a massive amount of rounds but a clear difference.
Thanks
I have the Smoke Composites with 1913 rail on the top. Eh. I would probably not mount a laser on it. I can’t say that it is flexing more than an aluminum M-look handguard, but probably. But I’d stick with the URX4 with a laser.
As far as conductivity, using a 6720 barrel, I had no trouble holding on for far more rounds than the 6960. Not a massive amount of rounds but a clear difference.
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