Warning

 

Close
Confirm Action

Are you sure you wish to do this?

Cancel Confirm
AR15.COM
AR Sponsor
2/6/2013 5:56:53 AM EDT
I notice that my Stag 3H upper is slinging the brass quick enough to actually contact the rear of the ejection port more than the brass deflector. It is denting the brass and took the finish of the ejection port. I was wondering is this an over gas issue or something else. Im running a stock buffer and spring.
2/6/2013 4:06:08 PM EDT
[#1]
Your gas port could be a little bigger than normal.





Carbines from companies like bushmaster,dpms,rock river and others are usually a little over gassed, but not enough to cause problems. But I'm not sure about stag.





As far as the way it's ejecting, as long as it is feeding,chambering,extracting and ejecting the way it should with no malfunctions then it's fine.





Having said that, if you want to slow things down a little and you have a carbine length receiver extension, you could try using an H or H2 buffer to slow things down a little bit.





If you have a rifle length receiver extension their is only one type/weight buffer for it.

 
2/7/2013 10:12:28 AM EDT
[#2]
Well,

I second the h or h2 buffer...

I've now had a dpms and one Psa with a bit too much gas...

I could have put on a variable gas block..

But putting a bit mor weight is so easy...

My function on heavy buffers and such...

Keep upping the buffer weight till it won't lock back on the bolt catch...it's then short cycling...then step back to the previous buffer weight...and it runs smooth...

Adding a bit more weight also decreases the recoil, at least felt recoil...an IMHO will increase the life of the entire moving mass of the rifle...

Bret
2/7/2013 10:18:45 AM EDT
[#3]
Quoted:
I notice that my Stag 3H upper is slinging the brass quick enough to actually contact the rear of the ejection port more than the brass deflector. It is denting the brass and took the finish of the ejection port. I was wondering is this an over gas issue or something else. Im running a stock buffer and spring.


Start by pulling all the way back on the charging handle, and confirming that the face of the bolt does not retract back past the back of the ejection port (it does now, and why the back of the ejection port is getting dinged to hell)

Now, pull the buffer and buffer spring out of the tube,  Drop two quarters down the inside of the tube, drop the spring back in, then the follower,and redo the charging handle/bolt face against the back of the ejection port test.



As for permanently correcting the problem, the end of the receiver extension needs to be shorted to allow the receiver extension to be spun into the lower receiver a thread or two.
AR Sponsor