Jump to content
308AR.com Community
  • Visit Aero Precision
  • Visit Brownells
  • Visit EuroOptic
  • Visit Site
  • Visit Beachin Tactical
  • Visit Rainier Arms
  • Visit Ballistic Advantage
  • Visit Palmetto State Armory
  • Visit Cabelas
  • Visit Sportsmans Guide

Recommended Posts

Posted

I just built my first .308. Its an Aero Precision M5 with a Nickel Boron BCG from Aero. Barrel is a 16"  Ballistic Advantage barrel with a  mid length gas system with a Seekins adjustable gas block. I do run the gun suppressed for night time pig hunting.  The problem im having is im having  failure to extract or poor extraction 80% of the time.  Either the spent round gets stuck under the extractor and slams into the receiver or it releases the spent casing only have it  fall directly on the magazine or just  roll out the rifle. I have adjusted the GB as per instructions. I have ran it wet and dry and nothing makes a difference. 

Posted

What loads are you using?  Does it work with the gas block wide open?  If not, is the gas block lined up with the gas port?  There are other more knowledgeable people who will chime in soon.

Posted

Open up gas to 100% , first.

Then buffer weight , second.

If all else fails , add a o - ring to the spring in the bolt. This will help weak ejection/extractions.

Posted (edited)

Ps   lets back up a sec...so does the rifle do this when the can is on or without the can? does it run fine without can?  Im assuming that you are not running the can ?      Wash

Edited by washguy
Posted (edited)

What loads are you using?  Does it work with the gas block wide open?  If not, is the gas block lined up with the gas port?  There are other more knowledgeable people who will chime in soon.

Factory loads. Just about anything  from Academy it does the same. I had a regular gas block on it and it did the same thing. Everyone told me it was over gassed. Get an adjustable gas block they said it will fix it they said lol.  The gas block is lined up perfectly ill post a pic down below.

Edited by psdmedic
Posted

I changed the recoil system to Armalite : extention tube,spring and buffer in my M5.Have the same upper except for Aero barrel 16".Runs good now.Just my 2 mags.

did you go to heavy buffer?

Posted

Open up gas to 100% , first.

Then buffer weight , second.

If all else fails , add a o - ring to the spring in the bolt. This will help weak ejection/extractions.

There are two orings around the spring already from the factory.

Posted

PS  you gotta get it to lock with boltcatch use a single round in mag,but I think you got exactly what Unforgiven had going on...if it were me i would do what he did....its a short stroke/cycling deal....I think its not the gas but the tube/buffer/spring.....can you manually just pull the charge handle back and have it lock with an empty mag?        Wash

Posted (edited)

PS  you gotta get it to lock with boltcatch use a single round in mag,but I think you got exactly what Unforgiven had going on...if it were me i would do what he did....its a short stroke/cycling deal....I think its not the gas but the tube/buffer/spring.....can you manually just pull the charge handle back and have it lock with an empty mag?        Wash

Yes sir did that. And yes sir I can.

Edited by psdmedic
Posted (edited)

Stock Armalite buffer, H3 was longer and heavier,as was the extention tube and spring than what Aero had.Was not an expensive retrofit.

Is it easy to  find online? Just the buffer not the spring?

Edited by psdmedic
Posted (edited)

PS about 24 posts down...look at the correct measurements of tube buffer and spring that was asnswered    page one    Wash

Edited by washguy

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now
×
×
  • Create New...