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10/30/2009 4:59:49 PM EDT
Hi Guys,

What buffer do I use with a midlength gas system (16" barrel)?  I hope to use a MagPul ACS stock, so, it's a mil spec tube, but, what spring and buffer?  Rifle, carbine, standard - what's the right selection and terminology?  Who's a recommended supplier of tubes, springs and bufffers?

Thanks for your help.

Dan
10/30/2009 5:05:05 PM EDT
[#1]
If you need all the stock mounting hardware:

http://www.bravocompanyusa.com/Stock-Hardware-Mounting-Kit-Mil-Spec-p/stock%20hardware%20kit.htm

Get either a standard carbine or an H buffer.  I've read people have good results with both (I've got an H in my in progress middy build).

If you have the receiver extension mounted, you'll need a Carbine action spring and the buffer of your choice.  They're on this page:

http://www.bravocompanyusa.com/M4-and-CAR-Stocks-s/72.htm
10/30/2009 5:09:56 PM EDT
[#2]
You need a Carbine Buffer, and spring, as for the buffer, I would say a H would be fine, that what I use, and I have had no problems.
As for suppliers, Brownells, BCM, Stag, or Spikes, all carry them.
10/30/2009 5:52:55 PM EDT
[#3]
The heavier buffer will slow down the cyclical rate of the rifle, what it the advantage? Does it make it more accurate?
10/30/2009 6:42:26 PM EDT
[#4]
Quoted:
The heavier buffer will slow down the cyclical rate of the rifle, what it the advantage? Does it make it more accurate?


No accuracy advantage, it reduces felt recoil a bit.  I have an H3 on my middy build.  Noticably less kick.
11/21/2009 11:55:17 AM EDT
[#5]



Quoted:



Quoted:

The heavier buffer will slow down the cyclical rate of the rifle, what it the advantage? Does it make it more accurate?




No accuracy advantage, it reduces felt recoil a bit.  I have an H3 on my middy build.  Noticably less kick.


Does your bolt lock back every time w/ the H3 buffer?  (When the mag is empty of course.)



 
11/21/2009 1:39:28 PM EDT
[#6]
Even with the weakest ammo (wolf, etc).  And I run a Denny's m16 bcg.  That H3 was the best 40 bucks I've spent on my rifle.  YMMV.
11/21/2009 1:46:04 PM EDT
[#7]
I've said this same thing in a couple of other threads but I think the Spike's ST-T2 Buffer is worthy of consideration. I have several and like them very well. They also sell this buffer in a receiver extension kit.
11/21/2009 2:09:08 PM EDT
[#8]
Quoted:
Hi Guys,

What buffer do I use with a midlength gas system (16" barrel)?  I hope to use a MagPul ACS stock, so, it's a mil spec tube, but, what spring and buffer?  Rifle, carbine, standard - what's the right selection and terminology?  Who's a recommended supplier of tubes, springs and bufffers?

Thanks for your help.

Dan


It looks like, for the Magpul ACS Stock requires a Mil-Spec "Carbine" reciever extension, so you would need a "Carbine" buffer and a "Carbine" Spring.

The gas length of the upper has nothing to do with stock.  Magpul PRS stock, then you would need a "rifle" length receiver extension (A1/A2), a "rifle" buffer, and a "rifle" length spring.
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