The Firing Line Forums

Go Back   The Firing Line Forums > The Hide > The Art of the Rifle: Semi-automatics

Reply
 
Thread Tools
Old December 25, 2012, 05:53 PM   #1
grizz300
Junior Member
 
Join Date: December 15, 2012
Posts: 2
fail to extract/eject

hey guys I need your expertise. I am new to ars and ahave one that will extractt the case partially, and the next round will catch the one being extracted and jam up. I tried one round at a time and abolt will catch the empty. What is the cure for this. Thank you grizz
grizz300 is offline  
Old December 25, 2012, 07:14 PM   #2
DnPRK
Senior Member
 
Join Date: August 24, 2001
Location: LC, Ca
Posts: 1,760
Does your AR-15 have a 16" barrel? If so, your description makes me believe the extractor is prematurely releasing its grip on the case rim. http://www.youtube.com/watch?v=kYm5UjojDMU

There are two fixes for that issue. First is to install a small o-ring around the extractor spring to help the spring keep the extractor hooked on the rim. http://www.bravocompanyusa.com/BCM-E...%20upgrade.htm

Another aid to extraction is to replace the standard buffer with a heavy buffer to slow down the extraction process by a fraction of a second. http://www.bravocompanyusa.com/H-Car...arbine%20h.htm
DnPRK is offline  
Old December 25, 2012, 08:16 PM   #3
RLFD5415
Senior Member
 
Join Date: July 3, 2004
Location: Upstate NY
Posts: 129
I have run into this issue many times. It is likely not the mag, but go ahead and eliminate by trying different mags. Also fire some different ammo. Next, check that your gas tube is not obstructed, and then check your your gas block alignment. If those pass, swap out your buffer and buffer spring. Finally, if all else fails to yield results, check your headspacing. If you do not have gauges, you will need a qualified gunsmith.

FYI, I have also seen gas tube length issues, but only on 308's.
__________________
It took me 6.25 years to reach 100 posts...
RLFD5415 is offline  
Reply

Thread Tools

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT -5. The time now is 09:54 PM.


Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2014, vBulletin Solutions, Inc.
This site and contents, including all posts, Copyright © 1998-2014 S.W.A.T. Magazine
Copyright Complaints: Please direct DMCA Takedown Notices to the registered agent: thefiringline.com
Contact Us
Page generated in 0.05698 seconds with 7 queries