Page 2 of 7 FirstFirst 1234 ... LastLast
Results 11 to 20 of 63

Thread: Bolt catch not catching on last round

  1. #11
    Join Date
    Jun 2012
    Posts
    32
    Feedback Score
    3 (100%)
    Quote Originally Posted by Clint View Post
    The bolt face should retract approx .250" past the bolt catch at full recoil.

    What receiver extension & buffer?
    ok so .250'' is a good number i can work with....if its not going past that far....what is blocking it?

  2. #12
    Join Date
    Jun 2012
    Posts
    32
    Feedback Score
    3 (100%)
    Quote Originally Posted by Sticks View Post
    Over gasses, under gassed, no name mag, dirty mag, buffer, spring.........we really need more info.
    under gased is my opinion and i ONLY run pmags and for it being dirty its all brand new prob 3-400 down tube and i cean every time even if i shoot 5 rnds

  3. #13
    Join Date
    Jun 2011
    Location
    WI
    Posts
    57
    Feedback Score
    0
    Pmags have difficulty engaging bolt stops on some rifles. Take your upper off, install an empty magazine, and see how much over lap there is between the mag's tab and the bolt catch.

    Advntrjnky

  4. #14
    Join Date
    Dec 2008
    Posts
    196
    Feedback Score
    0
    Quote Originally Posted by chaarp1 View Post
    ok so .250'' is a good number i can work with....if its not going past that far....what is blocking it?
    Quote Originally Posted by Blowby View Post
    This question led me to believe he is not having the BCG physically retract far enough.
    Is the BCG not moving back far enough? If so what spring, buffer tube or buffer brand/type is being used.

    If the BCG is moving back far enough then the problem you found in the gas system would be the first area to address. Keep up the good work and solve one problem at a time.
    NRA Lifetime Member
    Firearms and Diesel Trucks....the left's worst nightmare!

  5. #15
    Join Date
    Mar 2008
    Posts
    545
    Feedback Score
    0
    Quote Originally Posted by chaarp1 View Post
    ok so .250'' is a good number i can work with....if its not going past that far....what is blocking it?
    I repaired someone's rifle with the same problem. They built the rifle out of parts and the fixed buttstock was replaced with an Ace stock. The butt stock screw was too long for the new stock, so there was enough screw sticking out inside the receiver extension to stop the buffer from traveling far enough to the rear to allow the bolt to be engaged by the bolt stop. I replaced it with a shorter screw and the rifle functioned properly.

    On another occasion, I was running a rifle class and I saw a working rifle start to malfunction. Initially I thought it was a gas problem and it turns out there was dirt in the vent hole on the upper buttstock screw. The buffer fit tight enough inside the receiver extension that pressure built up and would not allow the bolt to travel far enough to the rear. I cleaned the dirt out of the vent hole and it cured the problem.

    Try using a magazine that you know will work in another rifle.

    There are a lot of possibilities and without seeing the rifle it is hard to troubleshoot. Please give us an update when you find the problem.
    Last edited by 7 RING; 12-19-12 at 17:49.

  6. #16
    Join Date
    Jun 2012
    Posts
    32
    Feedback Score
    3 (100%)
    ok here are some pics gas block w crap that had come out of it(looks like rusty oil).... i checked the key to see if there were any leaks and there are none...the biffer is 3 1/4" the buffer spring is 9" i do NOT know the make of buffer, buffer spring or tube.....

    other then that the lower is rock river
    daniel defense lower parts kit
    stainless steel trigger group

    the upper was complete from M&A...dont know much about them...it is a crome lined 5.56 1:9

  7. #17
    Join Date
    Jun 2012
    Posts
    32
    Feedback Score
    3 (100%)

















  8. #18
    Join Date
    Mar 2008
    Posts
    545
    Feedback Score
    0
    Photos did not come up, so you will have to fire again.

    Repeat. Send it.

  9. #19
    Join Date
    Jun 2012
    Posts
    32
    Feedback Score
    3 (100%)
    so the last pic is of me holding the charging handle back and pressing the bolt catch up...there is like .010-.015" clearance ...but thats with the handle not sure if when its running it will retract further ...also its a cheap cheap charging handle i plan on replacing it soon but just spent lots of money on ammo and a few more pmags because of this stupid government trying to take away our 2nd amendment rights

  10. #20
    Join Date
    Jun 2012
    Posts
    32
    Feedback Score
    3 (100%)
    Quote Originally Posted by 7 RING View Post
    Photos did not come up, so you will have to fire again.

    Repeat. Send it.
    ...what im looking at them right now...i used the img link off photobucket...... do i see something you dont...i posted the text then in my next post posted just photos...do i use the html link or ....????

Page 2 of 7 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
  •