G&R Tactical
Page 2 of 3 FirstFirst 123 LastLast
Results 11 to 20 of 28

Thread: Sudden failure to feed

  1. #11
    Join Date
    Feb 2016
    Posts
    1,453
    Feedback Score
    44 (100%)
    Scratch that theory then.

  2. #12
    Join Date
    Dec 2009
    Location
    Utah
    Posts
    8,105
    Feedback Score
    3 (100%)
    A failing action spring can bring this problem on suddenly. Replace it.
    INSIDE PLAN OF BOX
    1. ROAD-RUNNER LIFTS GLASS OF WATER- PULLING UP MATCH
    2. MATCH SCRATCHES ON MATCH-BOX
    3. MATCH LIGHTS FUSE TO TNT
    4. BOOM!
    5. HA-HA!!

    -WILE E. COYOTE, AUTHOR OF "EVERYTHING I NEEDED TO KNOW IN LIFE, I LEARNED FROM GOLDBERG & MURPHY"

    http://i115.photobucket.com/albums/n289/SgtSongDog/AR%20Carbine/DSC_0114.jpg
    I am American

  3. #13
    Join Date
    Jul 2010
    Posts
    4,378
    Feedback Score
    42 (100%)
    Weak or damaged action spring. A carbine action spring should measure a minimum of 10 1/16" for a quick check.
    E pluribus unum

  4. #14
    Join Date
    Dec 2011
    Location
    Colorado Springs
    Posts
    6,657
    Feedback Score
    82 (100%)
    How many rounds do you have through it?
    Sic semper tyrannis.

  5. #15
    Join Date
    Jun 2012
    Location
    Michigan
    Posts
    23
    Feedback Score
    0
    Quote Originally Posted by Wake27 View Post
    How many rounds do you have through it?
    I'm guessing around 4000.

  6. #16
    Join Date
    Nov 2010
    Location
    MI
    Posts
    2,741
    Feedback Score
    20 (100%)
    That info is helpful and points to a possible worn action spring.

    Let us know how the replacement works.

    Quote Originally Posted by CHX77 View Post
    I'm guessing around 4000.
    Black River Tactical
    BRT OPTIMUM Barrels - 16" MPR, 14.5" MPC, 11.5" CQB, 9" PDW
    BRT OPTIMUM-S Barrel - 11.5" CQB Suppressor Gas Drive
    BRT OPTIMUM-S Barrel - 11.5" SB Suppressor, 11.5" SBT 25 Deg Tapered Shoulder Suppressor
    BRT Covert Comps 7.62, 5.56, 6X, 9mm
    BRT MarkBlue Gas Tubes - BRT EXT, EXC and PDW Lengths
    BRT EZTUNE Gas Tubes - CAR and MID
    BRT MicroPin Gas Blocks - .750" & .625"
    BRT MicroTUNE Adjustable Gas Blocks
    BRT CustomTUNE Gas Ports

  7. #17
    Join Date
    Oct 2012
    Posts
    4,013
    Feedback Score
    10 (92%)
    It looks dry to me. Maybe just the picture though. It wouldn't hurt to give it a drink and see what happens. I am old and continue to use BreakFree CLP.

  8. #18
    Join Date
    Jun 2012
    Location
    Michigan
    Posts
    23
    Feedback Score
    0
    The new spring is installed and it's chambering rounds 100% now while cycling by hand. I'll try to get out and fire it in the next couple days.

    The increased tension of the new spring was evident on the first pull of the charging handle. It seems I've used this firearm enough to warrant stocking up on critical spares.

    Thank you to all who assisted troubleshooting.

  9. #19
    Join Date
    Apr 2016
    Posts
    238
    Feedback Score
    3 (100%)
    Quote Originally Posted by CHX77 View Post
    The new spring is installed and it's chambering rounds 100% now while cycling by hand. I'll try to get out and fire it in the next couple days.

    The increased tension of the new spring was evident on the first pull of the charging handle. It seems I've used this firearm enough to warrant stocking up on critical spares.

    Thank you to all who assisted troubleshooting.
    Possibly another reason to use Spinco Blue or white springs. I'm surprised that a regular milspec spring gave up at 4k rounds. I typically heard 5-7k rounds and as much as 8-10k live. But this is a great data point.

    Thanks @CHX77

  10. #20
    Join Date
    Jan 2019
    Posts
    88
    Feedback Score
    0
    Quote Originally Posted by CHX77 View Post
    There are two parallel very light scratches on the bullet that appear to be from the edges of the ramps. My logic (possibly flawed) says that there shouldn't suddenly be new sharp edges on a well broken-in firearm. I do appreciate any ideas though. Thank you for that. I'll see what a new spring does and go from there.
    That's completely normal. You probably just haven't noticed it before. If you're bound and determined to polish the feedramps, there's a very specific way to do it. I wouldn't mess with it, though, seeing as how it's not the underlying problem.
    Last edited by okie; 11-02-19 at 19:51.

Page 2 of 3 FirstFirst 123 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
  •