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Author Topic: AR 10 build  (Read 2807 times)

Offline jdb

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AR 10 build
« on: August 16, 2015, 10:06:46 AM »
Quick question? If I were building an ar10 I can build it on any of the .308 based rounds correct?
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Offline Elliott

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Re: AR 10 build
« Reply #1 on: August 16, 2015, 01:18:36 PM »
As far as I know, yes. Just be careful because not all AR-10 parts are compatible.
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Offline 300rum

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Re: AR 10 build
« Reply #2 on: August 16, 2015, 06:33:13 PM »
For the most part yes.  Depending on your load you may run out of room in the mag though. 

Offline fly-by

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Re: AR 10 build
« Reply #3 on: August 22, 2015, 06:01:16 PM »
You can do any .308 derivative, plus a few others

http://www.shop.blackholeweaponry.com/AR-10-AR-308_c526.htm

Depending on your intended use, you may want to take a close look at the 6.5 Creedmoor.   It does a better job with the mag length issue than the .260 Remington when you shoot 140s.   If i didn't already have a .260 Remington (which I still really like) and were doing a build, that would be my choice. 



Offline GrainfedMuley

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Re: AR 10 build
« Reply #4 on: August 26, 2015, 06:53:11 AM »
As far as I know, yes. Just be careful because not all AR-10 parts are compatible.








That is correct. There are two company based platforms to build an AR-10. The two company are DPMS and Armalite. These two platforms are not compatible. If you choose to build one and choose what ever platform. STAY with that platform through your entire build. Even the magazines will not interchange. There are a ton of choices on both platforms, so it boils down to a personal choice.
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Offline grundy53

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Re: AR 10 build
« Reply #5 on: August 26, 2015, 06:56:50 AM »
So AR-10's are not milspec like AR-15's?

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Offline GrainfedMuley

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Re: AR 10 build
« Reply #6 on: August 26, 2015, 07:26:06 AM »
So AR-10's are not milspec like AR-15's?

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All AR-15 receivers are mil spec, but you can buy commercial spec accessories for any AR-15. As far as the AR-10 mil spec thing like the threads for the buffer tube or the hand grip might be the same. But the two companies are two entirely different designs. That's why they will not interchange. Yes they are both built based on the .308 cartridge and maybe the threads, but that is it. An Armalite upper will not match up to a DPMS lower. The pin holes are different. And the same in reverse. If you have a DPMS lower it has to match up with a DPMS style upper. Now several companies make the receivers. But as long as they are both based on the same companies, they will interchange. Several companies make the Armalite style receivers also.
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Offline grundy53

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Re: AR 10 build
« Reply #7 on: August 26, 2015, 08:17:46 AM »
So AR-10's are not milspec like AR-15's?

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All AR-15 receivers are mil spec, but you can buy commercial spec accessories for any AR-15. As far as the AR-10 mil spec thing like the threads for the buffer tube or the hand grip might be the same. But the two companies are two entirely different designs. That's why they will not interchange. Yes they are both built based on the .308 cartridge and maybe the threads, but that is it. An Armalite upper will not match up to a DPMS lower. The pin holes are different. And the same in reverse. If you have a DPMS lower it has to match up with a DPMS style upper. Now several companies make the receivers. But as long as they are both based on the same companies, they will interchange. Several companies make the Armalite style receivers also.
Yeah I don't by commercial spec ar-15 parts. I was mainly talking about the the interchangability of parts.  I like how with an ar-15 I can buy any brand of part and as long as it is milspec and it will work. Sounds like that isn't the case with ar-10's. I think that's kind of weird.

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Offline jay.sharkbait

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Re: AR 10 build
« Reply #8 on: August 26, 2015, 09:06:34 AM »
Milspec isn't the greatest when it comes to the AR world. Those specifications were written in the 60's and 70's before present day processes and materials.

Take bolts for example. Milspec calls for bolts to be made from carpenters 158. LMT's enhanced bolt is Aermet and the JP  bolts are 9310. While carpenters is pretty good stuff it can't compare to Aermet or 9310.






Offline Thefisherman83

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Re: AR 10 build
« Reply #9 on: August 26, 2015, 09:18:38 AM »
I found out the hard way that a DPMS "style" is not the same as a DPMS. Aero lower with a CCMG LPk were not 100% compatable. Pivot pin and mag release were too short.
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Offline GrainfedMuley

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Re: AR 10 build
« Reply #10 on: August 26, 2015, 09:27:29 AM »
 
 If you are refering to the trigger parts, safety, hammer? I am not totally sure I can answer that question. I do know the mag release on both rifles are different. I also think the barrel bolts are different. I got his info over on AR15.com and I hope thins might answer your guestions. I know that there are a numbers of companies that make things like a lower parts kit. But I also know that when you get them they ask what platform.


Q: What parts from an AR-15 can I use in a .308 rifle?
A: (from the AR-10 FAQ)

•Pistol grip

•Ejector/Safety spring

•Safety detent

•Buttstock screw (A2)

•Buttstock Assembly (A2)

•Buttstock Assembly (A2)

•Buttstock spacer

•Detent spring

•Detent (2 per rifle)

•Bolt stop pin

•Bolt stop plunger

•Bolt stop spring

•Mag catch button

•Mag catch spring

•Safety selector

•Rifle receiver extension

•Disconnector

•Disconnector spring

•Standard Trigger

•Trigger spring

•Hammer

•Hammer spring

•Hammer and trigger pin

•Trigger guard pin

•Trigger guard assembly (on some rifles - others have built in trigger guards)

•Buffer detent

•Buffer detent spring




The AR-15 Bolt catch should work on KAC/DPMS type lowers, but not AR-10 type lowers.

From DnPRK: Most AR trigger assemblies will fit an LR-308. The two triggers that require modification are 1) the Chip McCormick straight trigger which needs th end of the trigger clipped to clear the trigger guard and 2) the RRA trigger which might require the tip of the cocked hammer to be clipped to prevent it from dragging on the bottom of the bolt carrier.

An AR-15 rifle buffer tube will fit an LR-308, but you need the 308 rifle buffer and spring.

A CAR-15/M-4 collapsible stock buffer tube will fit an LR-308 but you need to use a Slash shortened buffer and 308 spring, or use Armalite's collapsible stock buffer, tube and spring for the AR-10 carbine.

A wise monkey never monkeys with another monkey's monkey!


Hunting and fishing is boring....Killing and catching is fun.  Quote: John Hubbard,  Master Sargent, Washington Army National Guard

 


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