Quantcast
  1. This site uses cookies. By continuing to use this site, you are agreeing to our use of cookies. Learn More.

AR15 question

Discussion in 'Rifle Country' started by mdThanatos, May 23, 2013.

Thread Status:
Not open for further replies.
  1. mdThanatos

    mdThanatos Member

    Joined:
    Aug 11, 2008
    Messages:
    621
    Location:
    NA
    Does anyone know how far back the bolt should be able to go when pulling the charging handle, as in should the bolt completely go past the ejection port or should it line up with the rear most edge of the port or stop before completely reaching the edge of the port? Just to clarify I don't mean when the bolt is locked open but when actually pulling back on the charging handle as far as it can go and manually holding it open.

    Thanks in advance,

    MD
     
  2. KUSA

    KUSA Member

    Joined:
    May 22, 2013
    Messages:
    14
    Location:
    NC
    I would have to look at one of mine to be sure but why do you ask? Are you having cycling issues?

    Sent from my Galaxy S3 using Tapatalk 2.
     
  3. Doogledog

    Doogledog Member

    Joined:
    Feb 14, 2008
    Messages:
    214
    Location:
    L.A. (Lower Alabama)
    The bolt should pull all the way back past the bolt catch by about an eighth to one quarter inch. That's what you should be looking for, not the opening in the upper. However, all of mine cannot be seen when looking perpendicular to the receiver. What kind of upper do you have? That could make a difference.
     
    Last edited: May 23, 2013
  4. mdThanatos

    mdThanatos Member

    Joined:
    Aug 11, 2008
    Messages:
    621
    Location:
    NA
    DSArms ZM4 upper carbine length gas tube, PSA Full Auto BCG, SAA lower with no name buffer tube. Issue I am having is an occasional stove pipe. Weapon has been cleaned and lubed properly, extractor has good tension, have tried it with and without the oring on it and it still occasionally does it. Have tried with a carbine buffer and an H buffer. Has done it with every magazine I have tried, old and new.

    My BCG goes past the ejection port, maybe a 1/4 of an inch and I am thinking that the rifle is either over gassed or it is because the BCG is going too far back that when the spent casing is finally ejected it is getting flipped back in to the chamber when the bolt is coming forward.
     
  5. YZ

    YZ member

    Joined:
    Nov 10, 2012
    Messages:
    1,066
    Location:
    Midwest
    It looks like you would have thought of trying different ammo. Just in case, a reminder.
     
  6. Bartholomew Roberts

    Bartholomew Roberts Moderator Emeritus

    Joined:
    Dec 26, 2002
    Messages:
    14,613
    Location:
    Texas
    Have you cleaned out the ejector pin hole? A weak ejector pin spring/partially bound ejector pin can sometimes cause the problem you describe.
     
  7. holdencm9

    holdencm9 Member

    Joined:
    Oct 25, 2011
    Messages:
    1,369
    Check the ejector and also the extractor. I know you said it has good tension, but does it have a nice sharp "claw" to it as well?
     
  8. adelbridge

    adelbridge Member

    Joined:
    Jan 30, 2012
    Messages:
    1,107
    Location:
    Texas
    Bcg might be too heavy
     
  9. KansasSasquatch

    KansasSasquatch Member

    Joined:
    Jul 22, 2012
    Messages:
    1,729
    Location:
    LV county KS
    Where is your ejected brass landing? And what ammo are you using?
     
  10. mdThanatos

    mdThanatos Member

    Joined:
    Aug 11, 2008
    Messages:
    621
    Location:
    NA
    Ammo has primarily been XM193 from Federal, have had it as bad as 3-4 stoppages per mag, have tried the American Eagle .223 ammo that comes in the black boxes as well as running a couple of mags of wolf. The wolf only had 1 stoppage in two mags, so that leads me to think overgassed.

    Brass has been ejecting in the 2:00 area of the "chart".

    I haven't checked the ejector pin hole but I will be sure to do that. I won't be able to go test any of this for 2 months as I have just made a move and must wait 90 days before getting a license that will allow me to shoot my rifle at a range.I have the H buffer installed but have an H2 to try when the time comes but still wondering if the distance that my bolt goes back should be something to worry about or not.
     
  11. backbencher

    backbencher Member

    Joined:
    Dec 13, 2005
    Messages:
    397
    Location:
    Texas
    "Location: Northern AL"
    " I won't be able to go test any of this for 2 months as I have just made a move and must wait 90 days before getting a license that will allow me to shoot my rifle at a range."

    ?!!
     
  12. briansmithwins

    briansmithwins Member

    Joined:
    Aug 1, 2005
    Messages:
    4,060
    What length buffer tube are you running?

    BSW
     
  13. mdThanatos

    mdThanatos Member

    Joined:
    Aug 11, 2008
    Messages:
    621
    Location:
    NA
    Not sure on the actual length I will measure it when I get back from work.

    To backbencher: I am living in Huntsville and working in Decatur. To use any of the rifle ranges close by you must have a valid hunting license or another type that will also grant access, a wildlife support or something. To get one I have to have continuously lived in Alabama for 90 days which will be in about 2 months. There are clubs that have ranges but their memberships are full so I can't utilize their facilities. I hope that explains what you quoted.
     
  14. YZ

    YZ member

    Joined:
    Nov 10, 2012
    Messages:
    1,066
    Location:
    Midwest
    I lived in Alabama. People assume it is a gun friendly state, but it's ambivalent to this day.
     
Thread Status:
Not open for further replies.

Share This Page