Suppressed 300 BO with Vltor A5

**drtywk** · 06-28-16, 19:45

I am getting ready to build my first 300 BO upper that will be run suppressed full time. It will be a HD/range toy/varmit hunting upper. Right now, my plan is to use a 9" BCM 300 BO barrel and BCM gas block and my can is a Silencerco Omega. Has anyone run this upper combination with an A5 buffer system? How does it run with supers and subs? Which buffer are you having success with, A5H2/A5H3/A5H4? Is there anything I should know/change before I put the upper together?

**Ready.Fire.Aim** · 06-29-16, 00:02

I have an AAC 12.5" barrel 300 blackout upper installed on a lower with an A5 buffer.

Runs great & cycles the action suppressed on my subsonic hand loads.
Silencer is an AAC 762SDN6

**fledge** · 06-29-16, 00:31

8.25" V7 with A5 H2 and Omega. Adj gas block fully open. Runs great with supers and subs.

**themonk** · 06-29-16, 05:12

For this use case I would suggest you look at the jp silent captured spring. Sounds like the goal of the rig is to be quiet and the JP makes a noticeable difference. I run one on my 9" AAC MPW and it is a very quiet and forgiving solution that runs any and everything I have thrown at it all 4 ways.

**CRAMBONE** · 06-29-16, 07:12

Originally Posted by themonk

jp silent captured spring. Sounds like the goal of the rig is to be quiet and the JP makes a noticeable difference.

Does anybody make a spring like that that will work with the PDW type stocks/receiver extensions?

**fledge** · 06-29-16, 08:55

Originally Posted by Jason0311

Does anybody make a spring like that that will work with the PDW type stocks/receiver extensions?

Maxim Defense uses a modified JP Spring in their PDW stock.

http://www.maximdefense.com/sell_sheet.pdf

**drtywk** · 06-29-16, 11:37

Originally Posted by themonk

For this use case I would suggest you look at the jp silent captured spring. Sounds like the goal of the rig is to be quiet and the JP makes a noticeable difference. I run one on my 9" AAC MPW and it is a very quiet and forgiving solution that runs any and everything I have thrown at it all 4 ways.

Are you running it in an A5 RE, and if so, which buffer have you had the most success with?