Looks like extractor upgrade solve AR problem...
by rob 
, Friday, July 10, 2015, 16:57 (3364 days ago)
Every load extracted, ejected and fed perfectly with the same mag changing only the extractor spring and o'ring. Is it common on AR's to throw up burrs like this on the brass? ![[image]](images/uploaded/2015071021551855a03f46a68f8.jpg)
I know all semi autos mark the brass to some extent but just want to be sure this is normal. This is common on my brass before and after extractor spring replacement.
Complete thread:
- Looks like extractor upgrade solve AR problem... -
rob,
2015-07-10, 16:57
![[*]](themes/default/images/complete_thread.png "Open whole thread")
- try one with the brass in focus (yeah I know it ain't easy) -
Miles,
2015-07-10, 17:13
- Two more... -
rob,
2015-07-10, 18:56
- that is not common -
bj,
2015-07-10, 19:45
- I does it occasionally on every load, before and... - rob, 2015-07-10, 19:49
- I agree, but he's got a extractor that's "out there" -
Miles,
2015-07-10, 21:36
- I wonder if polishing the chamber would help...NM -
rob,
2015-07-10, 22:11
- couldn't hurt! - Rob Leahy, 2015-07-11, 12:31
- Might not hurt to try it. - Miles, 2015-07-11, 16:00
- Does yours have a chrome-lined chamber? -
mcassill,
2015-07-11, 16:33
- Nope, not chromed lined... -
rob,
2015-07-11, 17:08
- My suspicion is that... -
mcassill,
2015-07-11, 18:34
- I kind of agree... - rob, 2015-07-11, 20:11
- My suspicion is that... -
mcassill,
2015-07-11, 18:34
- Nope, not chromed lined... -
rob,
2015-07-11, 17:08
- I wonder if polishing the chamber would help...NM -
rob,
2015-07-10, 22:11
- that is not common -
bj,
2015-07-10, 19:45
- Two more... -
rob,
2015-07-10, 18:56
- try one with the brass in focus (yeah I know it ain't easy) -
Miles,
2015-07-10, 17:13