G&R Tactical
Page 1 of 4 123 ... LastLast
Results 1 to 10 of 34

Thread: 2 o'clock Ejection Unsupressed

  1. #1
    Join Date
    Dec 2015
    Location
    The New World
    Posts
    591
    Feedback Score
    0

    2 o'clock Ejection Unsupressed

    What would cause 2 o'clock ejection unsupressed?

    All new items;

    Sionics 11.5 RGP Barrel (0.063 gas port)
    VLTOR A5 Tube, spring A5H2 buffer
    BCM BCG
    Surefire Warcomp
    Big brother is watching...and listening.

  2. #2
    Join Date
    Nov 2010
    Location
    MI
    Posts
    2,741
    Feedback Score
    20 (100%)
    Which ammo?

    Has the gas port size been verified/measured?

    Does the cycle feel fast or slow?


    Try swapping the BCG with a known good one.

    An overly strong extractor or ejector spring may be producing an abnormal ejection pattern.
    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

  3. #3
    Join Date
    Dec 2015
    Location
    The New World
    Posts
    591
    Feedback Score
    0
    Quote Originally Posted by Clint View Post
    Which ammo?

    Has the gas port size been verified/measured?

    Does the cycle feel fast or slow?


    Try swapping the BCG with a known good one.

    An overly strong extractor or ejector spring may be producing an abnormal ejection pattern.
    Gas port has been verified.
    Big brother is watching...and listening.

  4. #4
    Join Date
    Dec 2009
    Location
    Utah
    Posts
    8,105
    Feedback Score
    3 (100%)
    Weak extraction which leads to weak ejection resulting in a forward ejection pattern.
    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

  5. #5
    Join Date
    Dec 2015
    Location
    The New World
    Posts
    591
    Feedback Score
    0
    Quote Originally Posted by MistWolf View Post
    Weak extraction which leads to weak ejection resulting in a forward ejection pattern.
    So start with the extractor spring?
    Big brother is watching...and listening.

  6. #6
    Join Date
    Dec 2009
    Location
    Utah
    Posts
    8,105
    Feedback Score
    3 (100%)
    Quote Originally Posted by prepare View Post
    So start with the extractor spring?
    Yes. Colt extractor springs can be had for around $5. I think someone had them on sale for about $3- which reminds me, I need to stock up.
    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

  7. #7
    Join Date
    Nov 2010
    Location
    MI
    Posts
    2,741
    Feedback Score
    20 (100%)
    How about the rest of these things?


    Quote Originally Posted by prepare View Post
    So start with the extractor spring?


    Quote Originally Posted by Clint View Post
    Which ammo?

    Has the gas port size been verified/measured?

    Does the cycle feel fast or slow?


    Try swapping the BCG with a known good one.

    An overly strong extractor or ejector spring may be producing an abnormal ejection pattern.

    Quote Originally Posted by prepare View Post
    Gas port has been verified.
    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

  8. #8
    Join Date
    Apr 2016
    Posts
    238
    Feedback Score
    3 (100%)
    has the rifle been reliable and ejection pattern is your only concern? Are you running a can with it?

    I don't think extractor spring will help since BCM one is very very good, and probably better than Colt. Unless you have more than 5k-10k rounds I wouldn't consider replacing it.

  9. #9
    Join Date
    Dec 2009
    Location
    Utah
    Posts
    8,105
    Feedback Score
    3 (100%)
    Quote Originally Posted by Clint View Post
    How about the rest of these things?
    Yes, of course. But a bad extractor spring will muddy any other troubleshooting results, something I learned from hard experience. Starting with good extraction will save a lot of frustration.

    Quote Originally Posted by alx01 View Post
    I don't think extractor spring will help since BCM one is very very good, and probably better than Colt. Unless you have more than 5k-10k rounds I wouldn't consider replacing it.
    Search the old troubleshooting threads and you'll see several folks had problems with BCM extractor springs. Turns out BCM had a bad batch. The Colt extractor spring was developed specifically to address extraction related malfunctions that were showing up in hard use M4s. If the BCM extractor spring is better than the Colt spring, I haven't seen 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

  10. #10
    Join Date
    Sep 2007
    Location
    AZ
    Posts
    26,144
    Feedback Score
    14 (100%)
    There's no where near enough info supplied to begin replacing any parts.

    AMMO is the first thing I'd be interested in. Aside from that, ejection direction is way less important than the actual bolt speed/recoil impluse/thump. If you can compare the feel of the gun against another rifle for a control, you can get an idea if the bolt speed is excessive by running some double taps.
    "You people have too much time on your hands." - scottryan

Page 1 of 4 123 ... 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
  •