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AR trigger job? Bobbing the stock hammer?

Discussion in 'Rifle Discussion' started by clearconscience, Jun 25, 2016.

  1. clearconscience

    clearconscience Vancouver, WA Well-Known Member

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    so I was looking at some videos on how to do a cheap trigger job.

    I upgraded the springs on one of my ARs to JP reduced power springs and was getting light primer strikes. So I switched the hammer spring back to stock. Problem solved.
    But I read that if you bob the hammer putting the higher power spring isn't necessary.
    Anyone have experience in this?

    Would an AR10 react in the same way? Would bobbing the hammer on a .308 cause light primer strikes?
     
  2. v0lcom13sn0w

    v0lcom13sn0w Keizer, or Well-Known Member

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    yes, i bob my hammers when i put the yellow JP springs in. no problems.
     
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  3. v0lcom13sn0w

    v0lcom13sn0w Keizer, or Well-Known Member

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    not familiar with AR 10 platform. have only done this on my AR15 type rifles
     
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  4. mjbskwim

    mjbskwim Salmon,Idaho Well-Known Member

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    They use the same trigger group
     
  5. Velzey

    Velzey Estacada, Oregon Gunsmith Gunsmith Bronze Vendor Bronze Supporter

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    You can also reduce the sear step quit a bit, if its a stock hammer.
     
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  6. v0lcom13sn0w

    v0lcom13sn0w Keizer, or Well-Known Member

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    i set screw the trigger on some of them also. gets rid of take up
     
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  7. clearconscience

    clearconscience Vancouver, WA Well-Known Member

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    I saw that take screw for the grip screw.
    I thought about doing that on some of my rifles.
     
  8. F2CMaDMaXX

    F2CMaDMaXX West of Portland from England Bullet goes where now? Staff Member Bronze Supporter 2015 Volunteer 2016 Volunteer

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    Thanks for reminding me of this, i'd forgotten that i was going to home brew my AR trigger. It is, however, at the bottom of the list right now, even of the list for the dang rifle (furniture etc)
     
  9. 308

    308 ΜOΛΩΝ ΛΑΒΕ ΜOΛΩΝ ΛΑΒΕ Platinum Supporter Silver Supporter

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    What does that look like...can you post a pic?
     
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  10. Lance Jacobs

    Lance Jacobs South Willamette Valley Oregon Well-Known Member

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    AR trigger kits have become so affordable, that I would not skimp when it comes to the trigger by trying a home remedy.

    There are lots of affordable kits in the $50 to $70 range.

    WMD NiB-X Coated Trigger / Hammer Set - .154" - NiBXFCG - Primary Arms (http://www.primaryarms.com/nibxfcg/p/nibxfcg/)

    Spikes Tactical Battle Trigger SLA01BT 5.5 lb - Primary Arms (http://www.primaryarms.com/sla01bt/p/sla01bt/)

    ALG Defense Combat Trigger - ACT - 05-199 - Primary Arms (http://www.primaryarms.com/05-199/p/05-199/)

    .
     
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  11. v0lcom13sn0w

    v0lcom13sn0w Keizer, or Well-Known Member

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    my home remedy is 4.5lbs with no take up. my LPK cost me $40 at the time:D
     
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  12. v0lcom13sn0w

    v0lcom13sn0w Keizer, or Well-Known Member

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    image.jpeg image.jpeg
     
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  13. clearconscience

    clearconscience Vancouver, WA Well-Known Member

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    Yeah those triggers are $50-$80.
    The springs and adjustment screw will set you back about $20-25. And a quick buffer job.
    I like doing the work myself.

    Makes me feel special.
     
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  14. v0lcom13sn0w

    v0lcom13sn0w Keizer, or Well-Known Member

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    i install jp yellows then i polish the sear surfaces until they're like glass. 600, 800,1200,2000grit wet sand. then i red locktite a 1/4x28 set screw in the grip hole until the selector doesnt move... i back it out just enough for the selector to function. spikes t2 is my buffer of choice along with a 2 or 3 chamber brake.
     
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  15. v0lcom13sn0w

    v0lcom13sn0w Keizer, or Well-Known Member

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    ofcourse then i have a $165 CMC flat trigger in my other gun he he
     
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  16. beezer66

    beezer66 Salem, OR Active Member

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    I do the set screw through the grip on my rifles that have mil-spec style triggers. I have JP triggers and hammers in the others. All my AR's have JP yellow springs. Cheap upgrade $10-11 for springs and less than 50 cents for the set screws. I don't use loc-tite; I use 2 set screws and cut the grip screw down.

    Use caution when using set screws on the trigger, the hammer can bounce off of the the disconnect and have a run away or burst fire situation. Happened to me with a CMMG piston upper. Fixed that by bobbing the hammer. No problems with direct impingement uppers.
     
  17. v0lcom13sn0w

    v0lcom13sn0w Keizer, or Well-Known Member

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    the worst ive had is a fail to reset after 1 round is fired. no slam fire or run away. what happened was the setscrew walked forward after about 2-300 rounds. after that i started to use locktite.
     
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  18. 308

    308 ΜOΛΩΝ ΛΑΒΕ ΜOΛΩΝ ΛΑΒΕ Platinum Supporter Silver Supporter

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  19. v0lcom13sn0w

    v0lcom13sn0w Keizer, or Well-Known Member

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    yes and i like tinkering ha ha.

    this custom AR deal is a disease. first you buy one. then you modify it by buying parts because its no good enough and your $700 rifle becomes a $2600 recoiless precision machine. then you think "hey, this is fun why dont i build one..." then you build a 300blk pistol and instead of buying a CMC trigger this time you do a custom trigger job and actually shop around instead of JUST BUY your build only turns out to be $1200 and once that gun is done... here comes the suppressor:eek:. and while you wait for it to come you think "man, im bored" and dust off that anderson lower thats been in the back of the safe for years and browse NWFA classifieds for trades and sales for parts. now a guy has 3 AR type rifles and from there its the snoball effect!

    hope i got it right for most of us... LOL!

    :cool::D:p
     
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  20. mjbskwim

    mjbskwim Salmon,Idaho Well-Known Member

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    This is my quick remedy
     
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