Page 1 of 2 12 LastLast
Results 1 to 10 of 14

Thread: Problems after installing extractor upgrade kit?

  1. #1
    Join Date
    Dec 2007
    Posts
    42
    Feedback Score
    0

    Problems after installing extractor upgrade kit?

    I just installed an extractor upgrade kit and tried it with and without the o-ring and it fails to eject when hand cycling the bolt with the charging handle. Before putting the kit in, it ejected just fine (blue insert, stock spring that came with the Stag BCG). Now the round just stays attached to the bolt face because the extractor is holding it in. Is it supposed to do that when hand cycling the bolt?

    I do have a plastic dummy round that ejects just fine whereas the live rounds don't.

    Any help will be greatly appreciated.

  2. #2
    Join Date
    Jun 2006
    Location
    NoVA
    Posts
    10,780
    Feedback Score
    17 (100%)
    I would hold off judging it until you actually shoot it.
    Chief Armorer for Elite Shooting Sports in Manassas VA
    Chief Armorer for Corp Arms (FFL 07-08/SOT 02)

  3. #3
    Join Date
    Dec 2007
    Posts
    42
    Feedback Score
    0
    Quote Originally Posted by gotm4 View Post
    I would hold off judging it until you actually shoot it.
    Don't get me wrong, I'm not saying the upgrade kit is a POS, haha.

    Probably just a little anxious and paranoid as this is my first AR.

    Wasn't sure if it was supposed to do that when hand cycling and then work absolutely fine when actually shooting it.

    I'll head out sometime this week and see what it does.

  4. #4
    Join Date
    Sep 2006
    Location
    Wisconsin
    Posts
    120
    Feedback Score
    0
    Hmm, let me see if I can answer this in terms even i can understand. The extractor upgrade kit basically increases the clamping force on the rim of the cartridge case. Basically the kit was designed to improve extraction with the faster cycle times of the shorter weapons, there was a problem with the old spring insert combo where the claw would pop off the rim of the case because of the accelerated rearward movement of the BCG. The extra force applied to the rim prevents this.


    You're asking about ejection, the extractor really nothing to do with ejection except getting the fired case out of the chamber so it can be.

    I'm guessing you are cycling the action by hand very slowly? is that correct? The problem will more than like go away when you fire it.

  5. #5
    Join Date
    Dec 2007
    Posts
    42
    Feedback Score
    0
    Quote Originally Posted by ErikL View Post
    Hmm, let me see if I can answer this in terms even i can understand. The extractor upgrade kit basically increases the clamping force on the rim of the cartridge case. Basically the kit was designed to improve extraction with the faster cycle times of the shorter weapons, there was a problem with the old spring insert combo where the claw would pop off the rim of the case because of the accelerated rearward movement of the BCG. The extra force applied to the rim prevents this.


    You're asking about ejection, the extractor really nothing to do with ejection except getting the fired case out of the chamber so it can be.

    I'm guessing you are cycling the action by hand very slowly? is that correct? The problem will more than like go away when you fire it.
    Thanks for the info.

    I'm cycling the action with a moderate amount of force; not quite going slow, but definitely not close to what it would be during firing. I guess since the plastic dummy round ejects nicely, that it probably won't be a problem.

  6. #6
    Join Date
    Sep 2006
    Location
    Wisconsin
    Posts
    120
    Feedback Score
    0
    You should be good to go, let us know if it doesnt.

  7. #7
    Join Date
    Dec 2006
    Posts
    19
    Feedback Score
    0
    I experienced the same thing that you did when installing the kit on several bolts. Make sure that the spring is fully seated in it's seat when installing. This is done easily by using a pair of needle nose pliers. After seating the spring the problem is gone.

    IMHO when the spring is not fully seated it binds the extractor so it will not pivot to release the round as easily as normal.

    The BCM kits work great but need to be installed correctly to function.

    My .02

  8. #8
    Join Date
    Jul 2007
    Posts
    956
    Feedback Score
    0
    Just remember that the upgrade kit is NOT meant for Mid Length Gas Systems. (16" and longer barrels.) You will probably experience excessive extraction tension. The upgrade kits are for 14.5" barrel systems and shorter. If your weapon runs without the upgrade, this is telling you something. You can run a heavier spring and black buffer insert, and should be good to go, but when you replace your extractor spring, it's a good idea to replace your ejector spring as well to compensate for the extra extractor tension.

    This issue has been covered extensively in the last 6 months. Do a search for more info.

  9. #9
    Join Date
    May 2006
    Location
    VA/OH
    Posts
    29,630
    Feedback Score
    33 (100%)
    This is somewhat normal. After a hand full of rounds, the extractor will let go of the spent case.




    C4

  10. #10
    Join Date
    Sep 2007
    Location
    AZ
    Posts
    27,217
    Feedback Score
    14 (100%)
    I would definitely panic at this point.
    "You people have too much time on your hands." - scottryan

Page 1 of 2 12 LastLast

Bookmarks

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •