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Thread: AR15 trigger job help

  1. #1
    Boolit Master RU shooter's Avatar
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    AR15 trigger job help

    Back quite a few years when I started shooting HP with the AR I remember doing a cheap no cost trigger job on my first stock rifle and want to do this again on the one I just got . I did the takeup set screw in grip screw hole that helped but she's still a very heavy pull I remember bending the legs on one or both of the springs but can't remember which ? Can anyone point me to a link or picture or walk me through it once again . I remember it helped with weight of pull greatly and didn't cause any light primer strikes at all . I googled trigger jobs but most tell to clip the one leg off the hammer spring and I know that's not what I did back then .

    Thanks, Tim
    If you find yourself in a fair fight, your tactics suck!

  2. #2
    Boolit Buddy



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    Tim,

    Bending both legs on the trigger spring will reduce the trigger pull. It will also reduce the reset. Don’t bend too much. A 30 degree bend is a good starting point. Start the bend about where the spring bottoms out.

    Same for hammer spring. A slight bend where it sits over the trigger pin.

    Keep the trigger and hammer tension in balance. You want good positive reset every time you release the trigger. A better way is to just spend the $10 for JP reduced power spring set, or the maker of your choice.

    Lightly polishing the engagement surfaces with a fine stone to remove burrs helps some. As does lightly chamfering the sharp edges on engagement surfaces.

    A milspec trigger can be made to work well at CMP service rifle limits. It’s takes effort and care. The shortcut is to just purchase one of the many superb after market triggers or send it off to a good shop that specializes in Service Rifle. Compass Lake Engineering and White Oak come immediately to mind.

  3. #3
    Boolit Grand Master



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    2nd Amendment of the U.S. Constitution. - "A well regulated Militia, being necessary to the security of a free State, the right of the people to keep and bear Arms, shall not be infringed."

  4. #4
    Boolit Master Boolit_Head's Avatar
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    Get the JP reduced spring set. A take up screw and the reduced spring set can make a remarkably nice trigger pull.

    Clipping springs is not a good idea. Besides the spring set is only something like 11 bucks and you can change them back and forth.
    On every question of construction let us carry ourselves back to the time when the Constitution was adopted, recollect the spirit manifested in the debates, and instead of trying what meaning may be squeezed out of the text or invented against it, conform to the probable one in which it was passed.

    Thomas Jefferson, letter to William Johnson, June 12, 1823

  5. #5
    Boolit Master
    Sig556r's Avatar
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    Not a big fan of messing with trigger mechanism on an AR, much more on clipping springs. Bending at some minimal degree may work fine but polishing (not grinding) contact surfaces will more likely to produce crispier trigger. Drop-in trigger assembly or spring set are always an option.
    ...Speak softly & carry a big stick...

  6. #6
    Banned



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    Agree
    "Drop-in trigger assembly or spring set are always an option"
    Why make a science project when there are many good and affordable options ?????
    Said options are typically more reliable, and that must count for something.
    Notwithstanding the better trigger which was the original goal.

  7. #7
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  8. #8
    Boolit Master RU shooter's Avatar
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    Thanks all I polished it up and tweeked the legs onthe trigger spring some that helped a good bit pull is still "firm" but crisp better than she was for sure .

    Tim
    If you find yourself in a fair fight, your tactics suck!

  9. #9
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    I bought one of those jigs that you put your trigger guts into that lets you see the operation and measure the trigger pull. I polish the parts maintaining the same angles as they were new which generally results in a 1-1.5lb reduction in the trigger pull as measured before and after. I'm a firm believer in the Joe Bob stainless steel dual allen screw set that removes a heck of a lot of play.

    There are other options...save the stock trigger parts put them in a zip lock bag and simply drop in a complete unit. I have done both and have both in my AR's.

  10. #10
    Boolit Master

    LUCKYDAWG13's Avatar
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    kids that hunt and fish dont mug old ladies

  11. #11
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    Trigger sets come in all shapes and sizes it just depends on how much you want to spend. Keep in mind to keep a stock trigger setup for when it hits the fan here.

  12. #12
    Boolit Master RU shooter's Avatar
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    Quote Originally Posted by 6bg6ga View Post
    Trigger sets come in all shapes and sizes it just depends on how much you want to spend. Keep in mind to keep a stock trigger setup for when it hits the fan here.
    I agree ft it was a competition rifle I would spring for a good trigger but it's a 350 dollar carbine so being the cheap skate I'm gonna make the stock parks work best they can
    If you find yourself in a fair fight, your tactics suck!

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Abbreviations used in Reloading

BP Bronze Point IMR Improved Military Rifle PTD Pointed
BR Bench Rest M Magnum RN Round Nose
BT Boat Tail PL Power-Lokt SP Soft Point
C Compressed Charge PR Primer SPCL Soft Point "Core-Lokt"
HP Hollow Point PSPCL Pointed Soft Point "Core Lokt" C.O.L. Cartridge Overall Length
PSP Pointed Soft Point Spz Spitzer Point SBT Spitzer Boat Tail
LRN Lead Round Nose LWC Lead Wad Cutter LSWC Lead Semi Wad Cutter
GC Gas Check