Page 2 of 4 FirstFirst 1234 LastLast
Results 11 to 20 of 38

Thread: Colt commando upper starting to get froggy

  1. #11
    Join Date
    Jun 2015
    Location
    Georgia
    Posts
    3,058
    Feedback Score
    2 (100%)
    Quote Originally Posted by The Dumb Gun Collector View Post
    I cleaned it up paying particular attention to the extractor and chamber.. Replaced the buffer spring (which was visibly shorter) and fired 100 rounds of federal 55. Functioned fine but noticed it was ejecting around 1 o'clock. Might be time for a h3-4 buffer?
    Try replacing the extractor spring first. If the buffer spring was done, there's a better than fair chance that the extractor spring is too. And it would explain the forward ejection.
    “You have made us for yourself, O Lord, and our heart is restless until it rests in you.” -Augustine

  2. #12
    Join Date
    Jun 2007
    Location
    District 11
    Posts
    6,316
    Feedback Score
    24 (100%)
    That will be my next step then.
    Let those who are fond of blaming and finding fault, while they sit safely at home, ask, ‘Why did you not do thus and so?’I wish they were on this voyage; I well believe that another voyage of a different kind awaits them.”

    Christopher Columbus

  3. #13
    Join Date
    Sep 2007
    Location
    AZ
    Posts
    32,682
    Feedback Score
    14 (100%)
    Quote Originally Posted by The Dumb Gun Collector View Post
    it was ejecting around 1 o'clock. Might be time for a h3-4 buffer?
    A BRT gas tube is a MUCH wiser purchase... assuming the 1 o'clock is indeed too much bolt speed. Heavy buffers as a fix suck royally compared to correct gassing.
    "What would a $2,000 Geissele Super Duty do that a $500 PSA door buster on Black Friday couldn't do?" - Stopsign32v

  4. #14
    Join Date
    Jun 2007
    Location
    District 11
    Posts
    6,316
    Feedback Score
    24 (100%)
    I like it. I wouldn’t mind swapping it out but I have no idea what port is on the 11.5 commando.
    Let those who are fond of blaming and finding fault, while they sit safely at home, ask, ‘Why did you not do thus and so?’I wish they were on this voyage; I well believe that another voyage of a different kind awaits them.”

    Christopher Columbus

  5. #15
    Join Date
    Sep 2007
    Location
    AZ
    Posts
    32,682
    Feedback Score
    14 (100%)
    Clint has a sizing question series to get you rolling. Current port is irrelevant.
    "What would a $2,000 Geissele Super Duty do that a $500 PSA door buster on Black Friday couldn't do?" - Stopsign32v

  6. #16
    Join Date
    Nov 2010
    Location
    MI
    Posts
    3,514
    Feedback Score
    22 (100%)
    Yes, if a new extractor spring doesn't bring it back to proper function, and it's still ejecting to 1:00, the next step would be to address gassing.

    An EZTUNE is a great fix if the gas port is eroded but the barrel is otherwise fine.
    Black River Tactical
    BRT OPTIMUM Hammer Forged Chrome Lined Barrels - 11.5", 12.5", 14.5", 16"
    BRT EZTUNE Preset Gas Tubes - PISTOL, CAR, MID, RIFLE
    BRT Bolt Carrier Groups M4A1, M16 CHROME
    BRT Covert Comps 5.56, 6X, 7.62

  7. #17
    Join Date
    Jun 2015
    Location
    Georgia
    Posts
    3,058
    Feedback Score
    2 (100%)
    ^ Can confirm. Happy with both my older gas block insert and my gas tube. Used to think adjustable gas blocks were "cool" but the shiny wore off pretty quickly with the frequent tinkering and cleaning. Set it and forget it is the way to go if it works for your application.
    “You have made us for yourself, O Lord, and our heart is restless until it rests in you.” -Augustine

  8. #18
    Join Date
    Jun 2007
    Location
    District 11
    Posts
    6,316
    Feedback Score
    24 (100%)
    Thanks so much for the help brothers. I went ahead and dropped in a Daniel defense bolt I had in my doomsday bag and it changed the ejection from 12:45 to 245 to 3. It’s also much more forceful. I swapped the old bolt back in and it went right back to pissing it out at 1 o’clock. Thanks very much. ! This Gun has run great for a long time, so I’m not gonna hold it against it that a little couple of springs got tired!
    Let those who are fond of blaming and finding fault, while they sit safely at home, ask, ‘Why did you not do thus and so?’I wish they were on this voyage; I well believe that another voyage of a different kind awaits them.”

    Christopher Columbus

  9. #19
    Join Date
    Jun 2015
    Location
    Georgia
    Posts
    3,058
    Feedback Score
    2 (100%)
    Nice. Glad it was an easy fix.
    “You have made us for yourself, O Lord, and our heart is restless until it rests in you.” -Augustine

  10. #20
    Join Date
    Aug 2016
    Location
    Alabama
    Posts
    795
    Feedback Score
    1 (100%)
    Glad to see it squared away. No concern abt brass ejection direction. That old ejection path "pie chart" is garbage.

Page 2 of 4 FirstFirst 1234 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
  •