AR15 buffer in AR308???

[dsdmmat]

http://www.prepperforums.net/forum/rifles-sks-ar-ak-long-guns/100169-ar10-problems.html

I was browsing the prepperforum when I ran across this thread. It sounds like the guy has an undergassed problem but some of the advice he was given was interesting.  The guy has a bear creek 243 upper on a DPMS lower. 

I found this particularly interesting: Swap out your AR15 spring and buffer to see if that solves your problem. 

So I posted pictures of the differences in the AR 308 vs AR15 platform buffer parts. I just couldn't sit back and wait for the next post that said "my bolt won't lock back and it kicks like a mule now."

 

If I recall correctly The Armalite carbine buffer tube is longer than the standard carbine buffer tube so you might be able to get away with the AR15 carbine buffer length but I am not certain about that. 

 

Edited February 18, 2018 by dsdmmat
Added info

[98Z5V]

3 hours ago, dsdmmat said:

If I recall correctly The Armalite carbine buffer tube is longer than the standard carbine buffer tube so you might be able to get away with the AR15 carbine buffer length but I am not certain about that. 

 

Completely true.  AR-10 Carbine system directly uses the AR15 H3 carbine buffer, 3.250" long.

^^^  Real Armalite parts, I'm talking about.  DPMS-based 308 carbine recoil systems use a 2.500" long buffer thats light as hell from the factory, and nowhere near an H3-weighted buffer.

Edited February 18, 2018 by 98Z5V

[dsdmmat]

1 hour ago, 98Z5V said:

Completely true.  AR-10 Carbine system directly uses the AR15 H3 carbine buffer, 3.250" long.

^^^  Real Armalite parts, I'm talking about.  DPMS-based 308 carbine recoil systems use a 2.500" long buffer thats light as hell from the factory, and nowhere near an H3-weighted buffer.

Thanks, I didn't think I was going bonkers. AR 15 buffers and springs should never be thrown in AR308s without an Armalite Carbine Buffer tube. 

[survivalshop]

4 minutes ago, dsdmmat said:

Thanks, I didn't think I was going bonkers. AR 15 buffers and springs should never be thrown in AR308s without an Armalite Carbine Buffer tube. 

 You would still need a Armalite AR 10 308 Buffer Spring ( Same Spring for Rifle or Carbine , 34 coils /13.750" long but different Length/Weight Buffers ) with the  AR 10 Receiver extension & the AR 15 H3 Buffer .

[dsdmmat]

5 minutes ago, survivalshop said:

 You would still need a Armalite AR 10 308 Buffer Spring ( Same Spring for Rifle or Carbine , 34 coils /13.750" long but different Length/Weight Buffers ) with the  AR 10 Receiver extension & the AR 15 H3 Buffer .

Yeah when it comes to the two patterns it is wise to stay on one side of the fence or the other. I could not believe the advice I was reading. 

Edited February 18, 2018 by dsdmmat

[98Z5V]

1 minute ago, dsdmmat said:

Yeah when it comes to the two patterns it is wise to stay on one side of the dense or the other. I could not believe the advice I was reading. 

I couldn't believe that whole thread.  It was painful to read...

[dsdmmat]

1 minute ago, 98Z5V said:

I couldn't believe that whole thread.  It was painful to read...

I am glad it wasn't just me thinking that.