Vltor A5 issues - AR15.COM

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Posted: 10/5/2015 4:59:04 PM EDT

Hey guys, looking for a little help. Decided to run the A5 set up on my SBR. The weapon is a 6920 which I had ADCO cut to 10.3" and open the port a bit. The weapon ran like a champ; upon installing the A5 I have began experiencing some failure to eject and failure to lock back. This will now occur maybe one malfunction every mag. I should also add brass ejects in the 1-2 oclock, as well as, the weapon functions properly suppressed. Trying to get some help.

Posted: 10/5/2015 11:25:22 PM EDT

[#1]

The A5 buffers run different weights. Which are you running?

Posted: 10/6/2015 1:41:55 AM EDT

[#2]

Maybe this is stupid...but if it isn't working, why don't you just go back to what you were using?

Posted: 10/6/2015 7:14:07 AM EDT

[#3]

I had sporadic issues with the A5 as well and stopped using it. I posted some details about 1/2 of the page down here: http://www.ar15.com/forums/t_2_543/258195_MK18_and_Govnah_specs.html

For a 'milspec' MK18 setup I run the same thing the military does. Standard power spring and H2 buffer and have NO issues.

Posted: 10/6/2015 3:55:29 PM EDT

[#4]

The standard A5 set up was designed for rifle length gas system and while it will work with shorter length gas systems, problems may arise. For your 10.3", I would run a carbine system with an H2 buffer.

Posted: 10/6/2015 9:35:42 PM EDT

[#5]

I've run an A5 on my MK18 for the past year and so far have not had any issues. What buffer are you using?

Posted: 10/8/2015 2:00:46 PM EDT

[#6]

I'll let you know how an A5 does with a 11.5" DD barreled upper soon. I'm waiting on my F1 to clear.

The A5 works on the other rifles I have.

[ARCHIVED THREAD] - Vltor A5 issues

Armory » Short Barreled Rifles (SBR)

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