which would you rather have a 6920 or a 6520 and why.
The difference between them is barrel profile and upper receiver. I would buy the one that meets my needs for weight and optics.
The best of both worlds is the 6720, due out soon.
agree 
Has anyone purchased a 6720 yet? I am very interested in this platform. As we are always learning on here, can someone briefly explain to me the benefits and differences of the 6720 to the 6920? I am tired of waiting on another rifle to hit the shelves and may try to grab this one. It will be used for patrol. I do like how it is just over 6 lbs.
Little confused about it. 
Ky Cop
EDIT- Just talked to Clyde Armory. He basically said its a lighter version of the 6920 with a pencil barrel on it. He also said that he thinks some of the other parts may be “milled” to drop weight. He claimed that they are selling a bunch and do have a LEO price on it. Good customer service. Still would like to know what some of the other gun guys on here think about it. It seems very appealing for a patrol rifle. Comes with 2 Pmags also.
- As I understand it, the 6520 has an A2 style upper receiver, which is a no-sale for me. Then I would have to use one of those funky looking above-the-carry-handle mounts if I want to use an optic. I much prefer the flat-top railed receivers.
Is that a “pencil” barrel? I’m not a fan of thin barrels. In my experience, there not as accurate.
A few yrs. back I took one of my 6520s and swapped the stock A2 for a BCM m4 flattop for IIRc $98…and poof, optics ready 6520:D
The 6520 is no doubt in my top 3 all time and imho, there is no better stock config’d gun than a 6520.
The pencil profiled l.w. barrel is very much accurate for what it is…just ask Molon:) Considering I am not allowed to own a m203, I think I can forgo the barrel that has been specifically cut for that feature.
If you are a bone stock kinda of guy, than for sure the 6520.
If you like to mod your ARs…6920 would be the better bet.
Wow…first dupe on m4c…my apologies…tried to add a pic of the 6520 w. swapped upper rec.
I like mine very much, and it’s my new working gun. I haven’t been nice to it at all. When I get my head above water on a couple of things, I’ll get the write-up done that I’ve been meaning to post.
In the interim, buy one. The AR6720 is GTG, and so is Clyde Armory.
made my own 
Damn that one smokes mine:D Excellent Job!
I love the 6520…however, I love the 6520’s barrel even more:D
To the OP…it’s apples and oranges, really. Looks like you’ll just have
to get both. Everyone else does!
Teaser…
The Colt 6720 is great. Lightweight, fast-handling and pretty solid right out of the box.
The only changes I made:
Swapped in a full MOE kit (handguard, grip, and stock), and swapped the Matech flip BUIS for a LaRue fixed BUIS.
Gained 2 oz. in weight, but the quality tradeoff is worth it.
I’m running the rifle as a backup with irons only. It’s my current favorite KISS rifle.
The only potential upgrade would be to shorten the barrel to 14.7" and PA a better comp/hider.
Will get some pics.
Agreed on the 6720. Wish it’d been around when I bought my 6920.
I’d go for the 6920… thin barrels warp more when hot… so your first shot accuracy is good… later shots might be in the next county.
The weight savings just arent worth it in my opinion… hell… a full size M16 is a light gun… I’ve marched a few miles with one and I’m still alive… and if you don’t have to carry one all day a few ounces don’t matter anyway…
A pencil bbl is like a truck without 4wd… should be banned…
Really…After many yrs. I have FINALLY found someone who not only doesn’t love the colt pencil profile l.w barrel but thinks it should be outright done away with:eek:
I am afraid to say that Colt happens to disagree…and my bet is that they will make it as long as they keep their doors open:)
Increased potential for deviations as a result of barrel heating are well within acceptable ranges for the roles that these guns perform. The LW is not a match or precision gun. Nor is it a Mini-14 either, notorious for its inconsistency when hot.
I’d be interested to see someone quantify the difference in accuracy between a hot 6920 and 6720 to see what it actually is. I bet it’s negligble, especially for a fighting gun.
The weight savings just arent worth it in my opinion… hell… a full size M16 is a light gun… I’ve marched a few miles with one and I’m still alive… and if you don’t have to carry one all day a few ounces don’t matter anyway…
Mission drives the gear.
IBOs, smaller statured shooters, lady and youth shooters, tend to favor LWs pretty consistently. As do a few knuckle dragging ogres like me. My prior working gun, a 6920, was pretty easy to carry and work with. It’s replacement, the 6720, is more easily handled one handed, in improvised positons, and moving around, all for longer periods.
The barrel is the weakest part of any rifle design. It doesn’t make any sense to me to weaken it even more.
If I were going light, I’d shorten the barrel, and reduce weight elsewhere.