Luth-AR stock to LR308

[Magwa]

Ok so I have a LR308 it has a carbine stock on it and carbine buffer tube so I get a full length buffer tube and a A2 buffer tube screw (the long one and it all attaches my Luth-AR skuleton stock to the LR308, now I can not use the LR308 buffer spring and buffer but can I use a rifle spring and buffer from a AR15 that is the question....

[blue109]

It will be too long. You need the 308 rifle spring and buffer.

Edited January 25, 2017 by blue109

[Magwa]

ok so , i have the 308 carbine buffer and spring will that work or is there even such a thing as a 308 rifle buffer and spring? thanks Blue

[COBrien]

Magwa: They do make a .308 Rifle buffer, and it is different than the 5.56 rifle buffer or the .308 Carbine buffer.

Fulton Armory's .308 AR is DPMS pattern, and their parts are top-notch, in my experience.

http://www.fulton-armory.com/FAR-308-Lower-Parts.aspx

$37 + shipping will get you up and running. I'm sure you can find .308 Rifle buffers and springs cheaper elsewhere, if you need/want to.

[MikedaddyH]

[MikedaddyH]

[jtallen83]

2 hours ago, Magwa said:

ok so , i have the 308 carbine buffer and spring will that work or is there even such a thing as a 308 rifle buffer and spring? thanks Blue

Yes;

https://armalite.com/shop/ar-10-a2-rifle-buttstock-kit-green/

I'm sure Brownells has them but the search function there gave me a big list of extraneous bull.

[JJ109]

Luth-AR sells your stock as a complete kit cause they know what works for most applications. You can see where it says" this package includes". Thats a nice stock you have there Magwa. 

http://www.luth-ar.com/product/skullaton-black-w-308-buffer-kit/

[JJ109]

http://www.luth-ar.com/product/mba-1-black-w-308-buffer-kit/

I have this kit. I ordered it direct from Luth-AR

[survivalshop]

 

Stick with a DPMS 308 Rifle Buffer & DPMS 308 Rifle Buffer Spring & you will be fine or a Tubb's Flat wire spring ( works with both Carbine & Rifle ) would be much nicer , smooth is the word for the Tubb's Spring . 

 

[Magwa]

OK I am totally confused so lets check em off one at a time

1. so the buffer and spring that are in my LR308 will not work correct? because they are carbine right ?

2. I need a 308 specific buffer and spring correct?

what does the 308 buffer weigh? I have a bunch of buffers here maybe one will work

 

jj109 that buffer looks just like one I have can you weigh yours for me in grams, or Oz either will be fine...and give me the length of yours as well thanks all

Edited January 26, 2017 by Magwa

[JJ109]

Magwa ,

Sorry I dont have a digital scale to weigh things unfortunately. Im in the process of getting one soon for my current build.

[Magwa]

well give me the length, :) I know you got a ruler lol

 

[98Z5V]

4 hours ago, MikedaddyH said:

^^^  That right there is 5.56 shiit.  That's a comparison between (left to right) 5.56 carbine buffer, VLTOR A5 buffer, and 5.56 rifle buffer.

That AR15 Carbine buffer will work in a 308AR, ONLY if used with the Armalite AR-10 Carbine receiver extension.  THe other two will not work on a 308AR, at all.

Here's a bigger pic of that...

Edited January 26, 2017 by 98Z5V

[Magwa]

Got it !, so I will just get a JD capture spring it will work in either extension tube simply by adding or taking out 1 spacer,So if I am going to spend the bucks... simple easy done.... thanks everyone....

Edited January 26, 2017 by Magwa

[survivalshop]

10 hours ago, 98Z5V said:

That AR15 Carbine buffer will work in a 308AR, ONLY if used with the Armalite AR-10 Carbine receiver extension

And you need a Armalite specific 308 Spring also .   I have read of issues with the SCS , I would look deeper into it in this sight . Some have no issues & some do . As said , I would stick with one of the two systems , you will have no issues if you go one way or the other  ( DPMS or Armalite )

 

 

Some specs that ArmaLite puts out...

 

RECEIVER EXTENSION TUBES 

 

•.223 / .308 rifle length 9-11/16” (inside depth) 

•.223 carbine length 6-15/16” (inside depth) 

•.308 carbine length 7-5/8” (inside depth) 

 

 

BUFFER SPRINGS 

 

•.308 buffer spring rifle and carbine length 14-1/8” 

•.223 buffer spring rifle length 13-1/2” max – 11-3/4” min 

•.223 buffer spring carbine length 11-1/4” max – 10-1/16” min 

 

 

BUFFERS 

 

•.223 rifle length 5-7/8” – weight 5.2 oz 

•.308 rifle length 5-3/16” – weight 5.4 oz 

•.223 carbine length 3-1/8” – weight 3.0 oz 

•.308 carbine length 3-1/4” – weight 5.4 oz