Precision AR-10 Build

Free float barrel, trigger, glass. That's all that matters when it comes to AR performance.

Do whatever else makes your sack tingle.

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I'm not going to pretend I know shit about fuck because I don't, but have you considered the Magpul PRS stock? Heard it's pretty good and sounds like it would fit perfectly with what you are trying to build.

Just something to think about.

>>33517847
Reciever set with prebuilt upper?
You mean like it's one of those OEM style things?

Your list sounds like a budget build that should go over pretty well.

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Having been where you are, I'd recommend getting the OEM parts and then rebuilding them if performance is not satisfactory. Any mistakes on Aero's part leads to inaccuracy or unreliability.

You may need an upper vise block and torque wrench as well.

>>33517982
Yeah, I was thinking of going with the 22" 6.5 upper and a matching lower, then building it so I don't waste parts more than necessary. So, essentially the only building I'd do on the upper is optics mounting, putting in the bolt carrier and charging handle. Everything else is pretty much there except in the lower, where I'd buy a stipped one and build it from there. Essentially a complete upper without the BCG and handle...how would I go about headspacing that for the best results? I'm sure I'd want minimul room for play or whatever, but how does one alter such a thing? If I order the BCG and charging handle with the upper will it come headspaced? is that how it works? Or do I just have to check it and use what I get if it's in tolerance?

>>33517944
Will definitely think about that, it's nice, but it's fairly expensive.

>>33517847
Something you need to consider.

Why 6.5 instead of .308?

The line where you see noticable differences in accuracy is past 700 meters. At 500 you can kind of see it but it's not so much of a difference. And despite what some may say, while you can push 6.5 and .308 out to a km, it's not a good idea nor a great time. At that point while you can do km work, you will be reloading, and since you are, Magnum cartridges are a far better choice.

The other side of this is that while 6.5 is clearly more accurate, you will need to replace the barrel every 1500 to 2000 rounds because the accuracy goes to hell in a hand basket, whereas with .308 you're seeing a 5000 to 8000 round barrel life, longer if you're sticking to 168 or 172 grain.

6.5 is great but is it 600 dollars every year for a new barrel, great?

>>33517847

I have that same family optic (fixed 6x) on my ar15 and the fixed 16 on an ar10, I fucking love those scopes.

>>33517944

These are also amazing.

>>33518200

Agreed, 6.5 is for people who are paid to shoot.

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It's a pretty good start. Just be aware that AR-10s still take some tinkering to get really accurate. There's a reason GAP-10s are so expensive. As long as the barrel is decent you should be able to get around MOA out of it, that's about the best I can do right now with a Lilja barrel. Granted a large part of that is probably user error as well, both in shooting and from when I put it together.

Some match grade barrels come with a bolt matched to the barrel, you'll still need a carrier for it. Might be an option if you're chasing absolute precision.

I'm considering that for my build, but all I have for now is the stripped receiver set.

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>>33517847
This was built 4 years ago, so dated
I only shoot out to 500 and im not a very good shot anymore. Still shoots moa.
>custom armalite sspss
>lothar wather 20" heavy barrel
>armalite adjustable gas system
>4lbs timney trigger

>>33518442
Oh and leupold mk4 4.5-14x

>>33518200
I don't WANNA use the 7mm! It fucking hurts! The lighter bullets we have to use now INCREASE the recoil on top of the already inhumane recoil.
Ok, I'll just get a new stock for it that hopefully makes it heavier and a recoil thingy that you turn down the barrel to install... MUZZLE BREAK! That's what that's called.

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>>33517847
While SWFAs are great scopes, you might want to also consider a variable power scope with DMR style reticle and BDC like the ones Primary Arms sells, they're cheap (<300$).

Indexing your turrets is fine in a range and all, but if you want to work on combat-style shooting or hunting, you won't always have time to set your ballistics.

>>33518817
ATACR?

>>33518872

nah, nxs 3.5-15x50. good optic.

>>33518883
Been thinking that, an ATACR or k624

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Mine is a 308 aero 18" cmv upper, lower and parts, bcg. Fagpul furniture with Nikon scope and mount. Velocity trigger. She does around MOA, I can get 1.5" at 200 but pretty sure it's just luck and 2in is more what she's doing. If I were to do it over again I'd skip Nikon and spend a little more for a nicer vortex. I might still do that later this year.

I'm in the process of building one myself. Is there any point to paying more for a "better" upper recieved? Would a tighter interface between the upper and barrel should be more conducive to accuracy and would a more expensive upper than Aero get me that?

BTW, Primary Weapons Systems has some of their "blemished" .308 lowers for sale for around $150 minus shipping.

>>33520062
$150 total with shipping included. My bad.

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>>33520062
You get tighter tolerances and more options. The tighter fit means less wobble between the upper and lower (my MEGA also has a set screw to take out any wobble), and of course a more snug fit to the barrel extension with a properly squared trunnion help.

>>33520183
I'd also say if you actually want to go for precision, buying a matched upper and lower set is very helpful.

>>33520192
Too late for that one. Already bought my lower as it was on sale. Trying to balance precision with cost effectiveness. Currently have the build around $1600 minus optics. As long as the upper and barrel I get are tight fitting (and I'll true up the trunion myself) I should be good.

>>33518200
>1500rd barrel life

Where is this myth coming from? It's 3k 'if' you're a serious competition shooter that needs the bore pristine. Other wise it's twice that

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Am I retarded for wanting an AR-10 with something like a Rock River Arms freefloat tube instead of a rail?

I can't help but dig the scaled-up AR15A2 look

>>33522294
As long as you don't get it in that tasteless SS barrel and gas block

>>33518200
6.5 factory ammo isn't much more expensive than .308 match ammo is now. It's popular.

6.5 is more fun to shoot. Less recoil is always better.

6.5 is better than .308 in every single way.

>1500 to 2000

brb I'm dialing 555-COME-ON-NOW

>>33522304
At this point I'd take what I can get and cerakote it to fix it.

Besides I couple of examples on gunbroker, AR10A4s are nowhere to be found.

I'd just like the aesthetic equivalent of an RRA national match A2 chambered in .308.

None of this ugly ass slab-sided DPMS garbage or angular shit from Aero that looks like it was carved off a black block of cheese

I've been waiting 16 months now for my AR10

just fucking kill me already

>fuck europe

>>33522336
.308 has more energy within 500yd. Where most people take game.

But to be fair anything you wanna kill with a 308 you can with a 6.5. So its not really a factor, the difference isn't much.

>>33518489
DMR scopes (like the PA lineup) are good if you set the turrets ONCE and NEVER use them in the field. The BDC reticles are pretty cool for off-the-cuff shooting but not for ultimate precision.

The SWFA scopes are for CALCULATED shooting--based on conditions, load & muzzle velocity. You dial in your elevation and either dial in or hold for windage.

>>33519710
I commend you for not calling your .308 an "AR-10"

>>33517928
this

my bargain bin PSA barrel is capable of MOA groups just by floating it, scoping it, and 2-staging it

>>33523293
Except that whenever I'm outside of a range (matches, hunting, i.e.: real life applications) I don't dial shit.
Unless you're shooting paper or seeking ultimate precision at long ranges, BDCs are actually better.

I have a 16" Aero precision .308 that shoots sub-moa groups. I'm really happy with it but the POI change when the barrel is hot bothers me. Any of you ever get a AR10 barrel cryo treated?

>>33518442
What handguard and stock is that?