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Posted: 2/27/2015 1:43:20 PM EDT
02-27-2015 Begins shipping
The 2A Armament™ BL RAIL M-LOK and KeyMod series was designed as a lightweight rail solution utilizing proven traditional 6061 extrusion, and titanium as the foundation. The BL RAIL series of rails features the same lightening cuts found on the popular BALIOS-lite receiver sets. When the two are combined, a seamless look is achieved across the top of the firearm. The BL RAIL is just as capable on any quality forged or billet upper receiver offered from other manufacturers as well. By utilizing a titanium barrel nut, and an innovative 45 degree mounting system, the BL RAIL achieves a solid lockup with the upper receiver. The 2A Armament BL RAIL will ship with a 6AL-4V titanium barrel nut. An optional aluminum barrel nut is offered as a separate item for those looking to save maximum weight on a build. Where to order????? http://www.2a-arms.com/dealers Features: Made from U.S.A. Certified 6061 Extrusion U.S.A. Certified 6AL-4V Titanium barrel nut as standard M-LOK and KeyMod mounting solution Mil-Spec hardcoat black anodized Free floating design 1.3” Internal Diameter 7 M-LOK Rail with Titanium nut and hardware (weight 5.65oz)(2A-MLHG-7) MSRP $188.99 12” M-LOK Rail with Titanium nut and hardware (weight 7.95oz)(2A-MLHG-12) MSRP $247.99 15” M-LOK Rail with Titanium nut and hardware (weight 9.60oz)(2A-MLHG-15) MSRP $285.99 7” KeyMod Rail with Titanium nut and hardware (weight 5.85oz)(2A-KMHG-7) MSRP $178.99 12” KeyMod Rail with Titanium nut and hardware (weight 8.10oz)(2A-KMHG-12) MSRP $226.99 15” KeyMod Rail with Titanium nut and hardware (weight 9.70oz)(2A-KMHG-15) MSRP $263.99 1-5/16” crows foot tool or premium armorers wrench recommended for installation (Not Included) Available Aluminum Nut reduces over all weight by .65 oz MSRP $30.99 
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Posted: 2/27/2015 1:49:52 PM EDT
[#1]
Very nice!
What do the barrel nuts weigh? And didn't I read somewhere that they can be installed using Magpul's armors wrench? |
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Posted: 2/27/2015 2:07:43 PM EDT
[#2]
With reamers like that, you could make a thumbhole stock or even a complete wooden stock/lower.
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Posted: 2/27/2015 2:59:38 PM EDT
[#3]
Quote HistoryQuoted:
Very nice! What do the barrel nuts weigh? And didn't I read somewhere that they can be installed using Magpul's armors wrench? Aluminum Nut is 1.10 oz Titanium Nut (What it ships with) is 1.75 oz on our scale. Yes! The MAGPUL Wrench is highly recommended. The DPMS wrench and others like it just don't fit the nut well enough. |
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Posted: 2/27/2015 4:37:19 PM EDT
[#4]
Can't wait for these to hit the shop and build the demo rifle!
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Posted: 2/27/2015 5:28:32 PM EDT
[#5]
That's some damn fine looking machining.
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Posted: 2/27/2015 5:54:03 PM EDT
[#6]
Those covers that you have on the MLOK rail of that SBR, are they available in Keymod, too?
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Posted: 2/27/2015 6:41:27 PM EDT
[#7]
Wow, these look awesome! I don't care for the cutouts in the top of every rail but that's just preference. I understand every gram you can save adds up.
On the 15" versions what's the deal with section that has "sides" at about the 12" mark? Gas block heat shield? Strength? Just curious. Thanks. Looks great! |
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Posted: 2/27/2015 8:17:05 PM EDT
[#8]
These look really nice!
What's the part in red for?  |
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Posted: 2/27/2015 11:03:23 PM EDT
[#9]
Quote HistoryQuoted:
These look really nice! What's the part in red for? https://lh3.googleusercontent.com/--hnaN9VUvz0/VPEIrlHH3kI/AAAAAAABU-w/zuIBXhfjZwY/w797-h446-no/2A.PNG Part in red is an index point for your thumb. I don't know if people will use it or not, but it fits me perfect when I am shooting. |
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Posted: 2/27/2015 11:04:59 PM EDT
[#10]
Quote HistoryQuoted:
Those covers that you have on the MLOK rail of that SBR, are they available in Keymod, too? Not sure if they are or not... I picked them up at the local Sportsmans. They have an entire rack of M-LOK accessories there, and not a single keymod piece. |
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Posted: 2/27/2015 11:46:26 PM EDT
[#11]
Any chance we might see these in 9 or 10"?
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Posted: 2/28/2015 12:04:51 AM EDT
[#12]
Quote HistoryQuoted:
Any chance we might see these in 9 or 10"? Good chance, yes... |
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Posted: 2/28/2015 12:13:34 AM EDT
[#13]
You guys are on a roll. Awesome rail.
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Posted: 2/28/2015 8:46:42 AM EDT
[#14]
I like it, keep comming with your great looking products!
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Posted: 2/28/2015 10:14:58 AM EDT
[#15]
Very nice.
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Posted: 2/28/2015 2:08:38 PM EDT
[#16]
Quote HistoryQuoted:
Good chance, yes... Quote HistoryQuoted:
Quoted:
Any chance we might see these in 9 or 10"? Good chance, yes... Awesome. 2 of my SBR's run BCM KMR's, but I really like the look and weights on your rails. I have a 3rd SBR that has a temporary rail and I'd love to put one of yours on, but it'd have to be 9 or 10". 
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Posted: 2/28/2015 9:48:52 PM EDT
[#17]
Those look very nice. I will have to try one out. Hopefully the Ti was made by the company I work for.
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Posted: 2/28/2015 11:04:40 PM EDT
[#18]
Quote HistoryQuoted:
Good chance, yes... Quote HistoryQuoted:
Quoted:
Any chance we might see these in 9 or 10"? Good chance, yes... 11" or 10" would be sweet. |
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Posted: 2/28/2015 11:09:50 PM EDT
[#19]
Any reason the titanium is the standard instead of the aluminum?
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Posted: 2/28/2015 11:15:28 PM EDT
[#20]
So with the aluminum nut the 15" is less than an ounce heavier than the BCM KMR and without using magnesium alloy. Impressive. And it looks like it wouldn't be hard for a somewhat skilled individual to make that ounce disappear.
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Posted: 3/1/2015 12:22:34 AM EDT
[#21]
The titanium nut has to cost at least double what the aluminum costs. The material cost is at least double and the machine time is at least double. If we choose the aluminum and you keep the titanium the total should be less right?
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Posted: 3/1/2015 12:41:44 AM EDT
[#22]
Quote HistoryQuoted:
So with the aluminum nut the 15" is less than an ounce heavier than the BCM KMR and without using magnesium alloy. Impressive. And it looks like it wouldn't be hard for a somewhat skilled individual to make that ounce disappear. Agreed. I honestly would think this would make the KMR much less attractive except to the ultr-lightweight crowd. Price, weight, looks all very attractive, I'll be looking very hard at 2A for a handguard for my current build |
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Posted: 3/1/2015 1:41:27 AM EDT
[#23]
Quote HistoryQuoted:
The titanium nut has to cost at least double what the aluminum costs. The material cost is at least double and the machine time is at least double. If we choose the aluminum and you keep the titanium the total should be less right? All our vendors and individuals we talked to just couldn't get past the mind game of using an aluminum nut. We of course realize that the thread relief at the receiver face is the most likely point of failure, not the nut in any case. But.... It's hard to get past that with a lot of folks, so we decided to ship it with the titanium nut. The Ti nut installs real nice! the threads are kinda gummy so it times very nicely. |
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Posted: 3/1/2015 6:46:04 PM EDT
[#24]
Quote HistoryQuoted:
All our vendors and individuals we talked to just couldn't get past the mind game of using an aluminum nut. We of course realize that the thread relief at the receiver face is the most likely point of failure, not the nut in any case. But.... It's hard to get past that with a lot of folks, so we decided to ship it with the titanium nut. The Ti nut installs real nice! the threads are kinda gummy so it times very nicely. Quote HistoryQuoted:
Quoted:
The titanium nut has to cost at least double what the aluminum costs. The material cost is at least double and the machine time is at least double. If we choose the aluminum and you keep the titanium the total should be less right? All our vendors and individuals we talked to just couldn't get past the mind game of using an aluminum nut. We of course realize that the thread relief at the receiver face is the most likely point of failure, not the nut in any case. But.... It's hard to get past that with a lot of folks, so we decided to ship it with the titanium nut. The Ti nut installs real nice! the threads are kinda gummy so it times very nicely. So how much torque should be applied to the aluminum barrel nut during installation and should it be lapped onto the receiver threads? Was there any material displacement when torquing the barrel nut on its threads? Curious, why keymod .2oz heavier? Though, I suppose it is a wash if you factor in the weight of attaching a .3oz M-lok QD socket from Arisaka Defense to the m-lok rail. |
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Posted: 3/1/2015 9:02:01 PM EDT
[#25]
Quote HistoryQuoted:
Agreed. I honestly would think this would make the KMR much less attractive except to the ultr-lightweight crowd. Price, weight, looks all very attractive, I'll be looking very hard at 2A for a handguard for my current build Quote HistoryQuoted:
Quoted:
So with the aluminum nut the 15" is less than an ounce heavier than the BCM KMR and without using magnesium alloy. Impressive. And it looks like it wouldn't be hard for a somewhat skilled individual to make that ounce disappear. Agreed. I honestly would think this would make the KMR much less attractive except to the ultr-lightweight crowd. Price, weight, looks all very attractive, I'll be looking very hard at 2A for a handguard for my current build Except BCMs steel barrel nut is .1oz lighter than the 2AA Ti barrel nut, and then you have V7 Weapon Systems Ti BCM KMR barrel nut at .8oz lighter than the Ti 2AA. I don't mean to bag on the 2A A piece as I have a 7" on preorder and it sure looks like a great piece, I just mean that as far as lightweight goes BCM KMR is still king with an experimental design to boot (no having to talk yourself into an aluminum barrel nut). Too bad they are dragging their feet on a 7" KMR but this 7" 2A A rail will have a welcome place next to its matching recievers and is lighter still than its current competition, both the SLR Rifleworks 7" ultralight and the 7" NSR are heavier. The M-Lok version sure is perfectly paired for the astehtic reliefs of the recievers, IMO. The keymod kind of looks "meh" in comparison. |
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Posted: 3/1/2015 9:51:53 PM EDT
[#26]
BCM's steel barrel nut is not lighter than the 2A. Listed weight for BCM is 2.2 ounces. 2A is 1.75 for the Ti.
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Posted: 3/1/2015 10:20:23 PM EDT
[#27]
The Magnesialuminum or whatever BCM is using is very light! It's hard to even come close to that with a traditional 6061 extrusion as a start. The M-Lok version is lighter because of the inlets around the M-Lok holes. this adds a ton of machine time, and that's why the price is where it's at. The Keymod isn't machined around the mounting holes like the M-Lok is, and they are prices less to accommodate.
We are not trying to be the absolute forefront of lightweight, but we want to be light... high quality.. and decent looking.  We will give all three a good swing as much as we can within our budget!
Here is a picture of the 12" rail being utilized by one of my boys. 
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Posted: 3/1/2015 10:54:58 PM EDT
[#28]
Quote HistoryQuoted:
BCM's steel barrel nut is not lighter than the 2A. Listed weight for BCM is 2.2 ounces. 2A is 1.75 for the Ti. Quote HistoryQuoted:
BCM's steel barrel nut is not lighter than the 2A. Listed weight for BCM is 2.2 ounces. 2A is 1.75 for the Ti. BCM KMR steel barrel nut weighs 1.6oz. The rest of the hardware actually weighs .75oz for a total of 2.35oz with nut (their spec is .15oz off on the two sets of hardware I weighed). V7WS Ti KMR barrel nut weighs exactly .9oz as is advertised. You are right to look at the total weight of mounting hardware involved but I think the weights given at the beginning of the thread in answer to my question were the barrel nuts only. So the comparison is apples to apples there, but now k am curious what do the 2A A mounting bolts weigh? Quoted:
The Magnesialuminum or whatever BCM is using is very light! It's hard to even come close to that with a traditional 6061 extrusion as a start. The M-Lok version is lighter because of the inlets around the M-Lok holes. this adds a ton of machine time, and that's why the price is where it's at. The Keymod isn't machined around the mounting holes like the M-Lok is, and they are prices less to accommodate. We are not trying to be the absolute forefront of lightweight, but we want to be light... high quality.. and decent looking. We will give all three a good swing as much as we can within our budget!
Ah, now I see it, that is indeed the difference that makes the m-lok rail more visually appealing IMO. I think you knocked it out of the park with this rail, i'll be surprised if one day the KMR rail is beat for weight but yours is possibly the closest yet to rivaling it. I belive it is the lightest option for 7" rails and it looks so good with your recievers too. 
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Posted: 3/2/2015 11:39:25 PM EDT
[#29]
You should do an extra light version that doesn't have a full length 12 o clock rail.
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Posted: 3/3/2015 2:00:05 PM EDT
[#30]
Quote HistoryQuoted:
You should do an extra light version that doesn't have a full length 12 o clock rail. This is what im hoping for. I suggested it in the receiver (wrong) thread. So +1 here. |
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Posted: 3/3/2015 8:51:19 PM EDT
[#31]
Integral QD mounts too, that would negate the weight advantage of the KMR.
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Posted: 3/3/2015 11:35:16 PM EDT
[#32]
Quote HistoryQuoted:
Good chance, yes... Quote HistoryQuoted:
Quoted:
Any chance we might see these in 9 or 10"? Good chance, yes... I'm waiting.  
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Posted: 3/3/2015 11:38:41 PM EDT
[#33]
Where are the pics of the keymod rails?
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Posted: 3/4/2015 3:50:05 PM EDT
[#34]
Quote HistoryQuoted:
Integral QD mounts too, that would negate the weight advantage of the KMR. For sure this, loose an MLOK slot and give me a QD point at the far end, again similar to MI style but with the great looks of your design. |
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Posted: 3/4/2015 6:25:27 PM EDT
[#35]
Quote HistoryQuoted:
Where are the pics of the keymod rails? I am working on it. 
We ended up shipping everything we had, so now I don't have a production sample to take pictures of. Here is a picture of the 15" KeyMod on a full rifle we built for SOLAR Tactical. 
Here is all three KeyMod Rails. Cell phone pic for now. 
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Posted: 3/4/2015 10:15:25 PM EDT
[#36]
Oh I gotta order one of these!!!! Me likey ??
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Posted: 3/4/2015 11:41:28 PM EDT
[#37]
Quote HistoryQuoted:
All our vendors and individuals we talked to just couldn't get past the mind game of using an aluminum nut. We of course realize that the thread relief at the receiver face is the most likely point of failure, not the nut in any case. But.... It's hard to get past that with a lot of folks, so we decided to ship it with the titanium nut. The Ti nut installs real nice! the threads are kinda gummy so it times very nicely. Quote HistoryQuoted:
Quoted:
The titanium nut has to cost at least double what the aluminum costs. The material cost is at least double and the machine time is at least double. If we choose the aluminum and you keep the titanium the total should be less right? All our vendors and individuals we talked to just couldn't get past the mind game of using an aluminum nut. We of course realize that the thread relief at the receiver face is the most likely point of failure, not the nut in any case. But.... It's hard to get past that with a lot of folks, so we decided to ship it with the titanium nut. The Ti nut installs real nice! the threads are kinda gummy so it times very nicely. You may want to remind people that the threads on the upper are made of aluminum... |
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Posted: 3/6/2015 3:38:28 PM EDT
[#38]
Got the demo rifle for the shop's AR Build class built. Boom.
5.76 lbs with a M4 profile barrel. Estimated 5.15 lbs after I get the pencil barrel in. 
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Posted: 3/12/2015 11:33:41 PM EDT
[#39]
Got my 2a key mod rail in last week from vertex ops. It looks great on the gun. Kind of wish I did the m lock, I am at 4 lb 11 oz. I am using the aluminum barrel nut on the 12 rail. 2A stuff is bad ass.
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Posted: 3/13/2015 12:04:26 PM EDT
[#40]
I didn't see the keymod rails on your site. I would be interested in a 12 inch model.
EDIT: Disregard. Found them on the dealers' sites. Thanks. |
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Posted: 3/16/2015 12:38:10 PM EDT
[#41]
NAME CHANGE!!!!!!
In order to not create any confusion within the industry, we are changing the name of our "LITE RAILS" to the "BL RAILS." I called Daniel Defense after noticing there "Lite Rail" series, and together we decided it would be best if we changed the name of our rail. The fact that DD had a trade mark on "Lite Rail" solidified the need for a name change. 
Anyhow. Small update, but wanted to address it here. Ryan |
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Posted: 3/21/2015 10:40:06 AM EDT
[#42]
How close are we to seeing a 9" M-Lock?
Thanks |
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Posted: 3/21/2015 1:27:55 PM EDT
[#43]
Quote HistoryQuoted:
How close are we to seeing a 9" M-Lock? Thanks This. As I had mentioned earlier in the thread, I'm in need of a shorty for an SBR upper with a barrel I'm testing for another manufacturer. Handguard is the only item missing right now. |
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Posted: 3/21/2015 2:11:57 PM EDT
[#44]
It will be a couple months out is my guess. We need to catch up to whats behind before we make the hole deeper!
Ryan |
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Posted: 3/22/2015 12:52:29 AM EDT
[#45]
Quote HistoryQuoted:
I am working on it.
We ended up shipping everything we had, so now I don't have a production sample to take pictures of. Here is a picture of the 15" KeyMod on a full rifle we built for SOLAR Tactical. https://lh4.googleusercontent.com/-GocnmgDpwnA/VPeGJAYstMI/AAAAAAAAANE/rqp5qBvRPZQ/w0-h0-no/IMAG0657.jpg Here is all three KeyMod Rails. Cell phone pic for now. https://lh6.googleusercontent.com/-h9hknRvuO7w/VPeHqQBNfWI/AAAAAAAAANY/UX7hAIlywgg/w0-h0-no/IMAG0662.jpg Quote HistoryQuoted:
Quoted:
Where are the pics of the keymod rails? I am working on it.
We ended up shipping everything we had, so now I don't have a production sample to take pictures of. Here is a picture of the 15" KeyMod on a full rifle we built for SOLAR Tactical. https://lh4.googleusercontent.com/-GocnmgDpwnA/VPeGJAYstMI/AAAAAAAAANE/rqp5qBvRPZQ/w0-h0-no/IMAG0657.jpg Here is all three KeyMod Rails. Cell phone pic for now. https://lh6.googleusercontent.com/-h9hknRvuO7w/VPeHqQBNfWI/AAAAAAAAANY/UX7hAIlywgg/w0-h0-no/IMAG0662.jpg What trigger are you guys using? |
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Posted: 3/22/2015 2:25:44 PM EDT
[#46]
ALG-ACT
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Posted: 3/23/2015 9:34:20 PM EDT
[#47]
That is a good looking rail. What is the external width and height?
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Posted: 3/24/2015 1:09:21 PM EDT
[#48]
Quote HistoryQuoted:
It will be a couple months out is my guess. We need to catch up to whats behind before we make the hole deeper! Ryan +1 on the 9" request. Maybe with a QD socket(s) and shaved off rail?
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Posted: 3/24/2015 1:17:09 PM EDT
[#49]
Quote HistoryQuoted:
Got the demo rifle for the shop's AR Build class built. Boom. 5.76 lbs with a M4 profile barrel. Estimated 5.15 lbs after I get the pencil barrel in. https://scontent-lga.xx.fbcdn.net/hphotos-xfa1/v/t1.0-9/11031139_10101430740421602_8077089883797659639_n.jpg?oh=83bbd4d4eadd588fef81d4fa06be5c9d&oe=557BC520 Details on this build? I'd like to duplicate it. Very nice. |
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Posted: 3/24/2015 2:33:52 PM EDT
[#50]
Quote HistoryQuoted:
Details on this build? I'd like to duplicate it. Very nice. Quote HistoryQuoted:
Quoted:
Got the demo rifle for the shop's AR Build class built. Boom. 5.76 lbs with a M4 profile barrel. Estimated 5.15 lbs after I get the pencil barrel in. https://scontent-lga.xx.fbcdn.net/hphotos-xfa1/v/t1.0-9/11031139_10101430740421602_8077089883797659639_n.jpg?oh=83bbd4d4eadd588fef81d4fa06be5c9d&oe=557BC520 Details on this build? I'd like to duplicate it. Very nice. The same rifle is here: Second rifle in video! 
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