Pennsylvania Firearm Owners Association
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  1. #1
    Join Date
    Aug 2008
    Location
    DeepInTheWoods, Pennsylvania
    (Warren County)
    Posts
    2,418
    Rep Power
    21474854

    Default Assembled 3 ARs this weekend

    It has been a few years since i built lowers with LPKs.

    I was struggling with the idiotic blade screw to hold the handgrip on.

    With a bit of tape on the screwdriver I could thread the screw up through the handle, but i could not keep it in place and get the detent spring positioned correctly.

    After a couple of attempts, i remembered the mod to tap threads into the spring hole, trim the spring and use a set screw to hold the spring.

    I dug out the bag that has 25 tiny allen head screws, the correct tap, and the correct wrench.

    It was a piece of cake after that.


    Took them out on the back porch and function tested. All 3 worked great.

    Funfunfun
    American by BIRTH, Infidel by CHOICE

  2. #2
    Join Date
    Jan 2011
    Location
    NEPA, Pennsylvania
    (Lackawanna County)
    Posts
    570
    Rep Power
    21474850

    Default Re: Assembled 3 ARs this weekend

    Sounds like a good weekend. You should post some pictures.

  3. #3
    Join Date
    Jun 2008
    Location
    Westmoreland Co., Pennsylvania
    (Westmoreland County)
    Posts
    214
    Rep Power
    1939484

    Default Re: Assembled 3 ARs this weekend

    Yeah, What he said!

  4. #4
    Join Date
    Jul 2021
    Location
    North east PA, Pennsylvania
    Posts
    20
    Rep Power
    0

    Default Re: Assembled 3 ARs this weekend

    I found a simpler solution was to buy a bag of 25 stainless allen head cap screws of the correct dimension and replace any slotted screws I come across. Then I carry one allen head T wrench in range tool kit

    Usually all the handgrips I come across are a tight friction fit to receiver and can hold safety spring and detent in place while I add screw. As always a mag well block to hold receiver is the great third hand.

    But you are right that the slotted screw is a pain to use and you have a workable solution.

    I have recently used LPKs from three different vendors and all had allen head screws for hand grip. I suspect you are working off old LPKs that you bought cheap way back when?

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