Warning

 

Close
Confirm Action

Are you sure you wish to do this?

Cancel Confirm
AR15.COM
3/10/2017 8:01:47 PM EDT
I recently picked up a Colt 6933 and a Surefire Socom 5.56 SB. Installed a Larue rail and shaved the FSB.

While shooting the cases eject to the 1 to 2 o clock position.

Clearly over gassed.

I am not doing an adjustable gas block Nor LMT enhanced carrier.

What buffer and spring should I change too. I will have a 20 inch rifle length upper for this lower at some point too. H2 and white springco? H3? I need to maintain the ability to reliably shoot unsuppressed as well.
3/11/2017 4:51:49 PM EDT
[#1]
I have moved all my lowers to the A5 system. I can run a sprinco green and A5H2 on everything from 10.5 to 16 surpressed and unsuppressed without malfunction. I really don't put much worry about where something ejects. Just whether or not it runs.

On my 6933 which runs exclusively suppressed, it has an A5H3
3/11/2017 5:03:58 PM EDT
[#2]
I just found out about this system. I might try it.

The only reason I pay attention to ejection is wanting a smooth recoil.
3/11/2017 7:00:09 PM EDT
[#3]
It has been around for a few years now. And the only complaint I see is that it is not standard. But it is, the extension is just an ar10 extension. The spring is just a rifle extension spring. The buffer is different.

The true benefit of this system for me is that it works with a variety of uppers.
Some say it's smoother, but I am not sure.  Not saying it isn't smoother, though either.
@NoMoreGreen
3/19/2017 10:48:19 PM EDT
[#4]
I use them in my registered receivers.   Very nice.  I use the A5H3 in them.  

I use 7.62x39 with 10 inch barrels.   Most suppressed.  I also have a 11 inch 556 upper and suppressed.  It's awesome.  

By the way, they use standard weights so you can mix and match without having to specifically by an A5H3.
3/21/2017 10:02:28 PM EDT
[#5]
Mine did the same.  I installed a springco spring (forget which color, but it's the carbine gas one).  An H2 buffer moved the ejection back a little while the H3 put it back farther still, but not quite 3 o'clock.  I have no doubt the A5 system will be a great combination with it.