Page 1 of 2 12 LastLast
Results 1 to 10 of 14

Thread: What Makes a Standard Trigger Gritty?

  1. #1
    Join Date
    Mar 2007
    Posts
    309
    Feedback Score
    1 (100%)

    What Makes a Standard Trigger Gritty?

    Looking into one of my assembled lowers, I see the polished face of the trigger, the rounded bottom of the hammer (where the J-clip goes in), and the disconnector. Given that the polished face is ... polished, that piece doesn't seem to be the cause of a gritty trigger.

    So is the culprit the rounded bottom of the hammer, which is unpolished, grinding against the polished face of the trigger?

    Is it the disconnector?

    Something else?

    I'm just trying to increase my knowledge. Thanks in advance.

  2. #2
    Join Date
    Oct 2007
    Posts
    38
    Feedback Score
    0
    Its the very top/ sharp corner of the trigger face that enguages with the hammer notch. Polishing the entire hammer notch and and the top of the trigger will help.

    Bill

  3. #3
    Join Date
    Aug 2006
    Location
    Southern California
    Posts
    1,108
    Feedback Score
    0
    Accelerate the wear on them artificially.

    With the upper off the lower, cock the hammer.
    Now pull forwards/upwards on the hammer while pulling the trigger until the hammer releases.
    Do this 4-5 times with steady pressure of 5-10lbs on the hammer.

    This will dramatically smooth out the creep in the trigger.
    Randall Rausch
    AR15 Barrel Guru
    California Precision Rifle Club founding member

  4. #4
    Join Date
    Mar 2007
    Posts
    309
    Feedback Score
    1 (100%)
    That sounds like a great idea, Randall! Much better than taking everything apart.

    Thanks!

  5. #5
    Join Date
    Aug 2006
    Location
    Southern California
    Posts
    1,108
    Feedback Score
    0
    Quote Originally Posted by Whytep38 View Post
    That sounds like a great idea, Randall! Much better than taking everything apart.
    Report back on your personal results.
    The weight won't really change, but it should smooth out dramatically.
    Randall Rausch
    AR15 Barrel Guru
    California Precision Rifle Club founding member

  6. #6
    Join Date
    Mar 2007
    Posts
    309
    Feedback Score
    1 (100%)
    Okay, I did the recommended procedure to all my ARs. Instead of 4-5 times, I did 6 for each rifle. They seemed to smooth out a little, but I would not say it was significant.

    Still, better is better.

  7. #7
    Join Date
    Aug 2006
    Location
    Southern California
    Posts
    1,108
    Feedback Score
    0
    Quote Originally Posted by Whytep38 View Post
    Okay, I did the recommended procedure to all my ARs. Instead of 4-5 times, I did 6 for each rifle. They seemed to smooth out a little, but I would not say it was significant.

    Still, better is better.
    On a brand new gun, it will be more significant.
    The more used a gun is, the less effect you see as the parts will have already broken-in on their own.
    Randall Rausch
    AR15 Barrel Guru
    California Precision Rifle Club founding member

  8. #8
    Join Date
    Mar 2007
    Posts
    309
    Feedback Score
    1 (100%)
    Just out of curiosity, about how many rounds are we talking about in terms of breaking in?

  9. #9
    Join Date
    Aug 2006
    Location
    Southern California
    Posts
    1,108
    Feedback Score
    0
    Quote Originally Posted by Whytep38 View Post
    Just out of curiosity, about how many rounds are we talking about in terms of breaking in?
    Somewhere between 500 and maybe 2000 trigger pulls will break the trigger in pretty good.

    Each time you do the trick where you put the extra force on the hammer is probably equal to a couple hundred normal trigger pulls.
    Randall Rausch
    AR15 Barrel Guru
    California Precision Rifle Club founding member

  10. #10
    Join Date
    Mar 2007
    Posts
    309
    Feedback Score
    1 (100%)
    FYI, I found another way to break-in my trigger. I have combined a bump drill with a wall drill. 3 sets of 5 repetitions each, with each set separated by 2 minutes of rest time.

    It's not as fast as dedicated trigger break-in with the "pull-pressure on the hammer" routine. But in about 10 minutes, I've added 15 dry-fire trigger pulls for break-in, practiced my sight alignment (I put a tiny target on the wall), and practiced my trigger pull. It also lets me practice mounting the rifle to the correct position, and lets me practice my stance.

Page 1 of 2 12 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
  •