PGP RVA Mod, What tap size/ thread?

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  • Heavy_D
    SpaceCadet
    • Jun 2024
    • 354
    • Alberta, Canada

    #1

    PGP RVA Mod, What tap size/ thread?

    I have a few PGP rear caps I wanted to Drill and tap for RVA plugs, Just wondered what tap/threading others used when doing the mod.

    Thanks.
    -Team Silver Creek United-
  • Jordan
    I. Am. Canadian. 🇨🇦
    • Jul 2020
    • 3508
    • Southern Ontario, Canada

    #2
    I've used 1/4"-28 and 3/8"-24.

    Whatever you use, I recommend fine thread - it makes small adjustments much easier.

    Comment

    • Chuck E Ducky
      Ragnastock Enforcer
      • Jul 2020
      • 6269
      • NY

      #3
      Fine threads is definitely key. The ones I made I just took the spring to the hardware store and matched up a grub screw that was similar diameter of the spring. A few of them I stepped in a drill so they kind of fit into the spring a lil bit it’s not needed.

      PGP Junkies has some really nice ones for $35 that work great if you want something drop in.

      https://pgpjunkies.bigcartel.com/pro...ocity-adjuster

      Comment


      • Jordan
        Jordan commented
        Editing a comment
        Tap and drill are $10 at the local hardware store and a screw is a buck.

        I get what you're saying... I'd love to support the people on here, but with exchange, etc, it's not always feasible.

      • Chuck E Ducky
        Chuck E Ducky commented
        Editing a comment
        Oh I get it. My local hardware store hit me for $19.99 the other day for a single drill and tap. Team Red but still. I even had the right one I needed for my ICD lever mods but didn't want to make a 2nd trip in if I didn't. must have spent $50 on little stupid stainless replacement screws and bits. But they always have everything I need in stock so I pay for the convince.

      • Myfeetupontheground
        Myfeetupontheground commented
        Editing a comment
        Thank you for mentioning PGP Junkies!
    • Trbo323
      MCB Member
      • Jul 2020
      • 6381
      • Vancouver WA

      #4
      I just found a screw in my kit and sized the tap to that
      I use Tapatalk which does NOT display comments. If you want me to see it, make it a post not a comment.

      Feedback
      https://www.mcarterbrown.com/forum/b...323-s-feedback

      Comment

      • Myfeetupontheground
        PGP Player
        • May 2024
        • 75

        #5
        Originally posted by Heavy_D
        I have a few PGP rear caps I wanted to Drill and tap for RVA plugs, Just wondered what tap/threading others used when doing the mod.

        Thanks.
        PGP Junkies here! I found that M10-1.0 Fine Thread gives you a good diameter and adjusting ability for the stock spring. Make sure to get a grub screw long enough to allow some play though. The stock PGP cap doesn't have much room for threading. I short grub screw might just run past your threaded section and sit loose behind your spring.

        Comment


        • BrickHaus
          BrickHaus commented
          Editing a comment
          Probably the best thread, but a metric piece of hardware on a pgp feels sacrilegious.
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