Flat top project

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  • Jordan
    I. Am. Canadian. πŸ‡¨πŸ‡¦
    • Jul 2020
    • 3508
    • Southern Ontario, Canada

    #1

    Flat top project

    I had some spare bits and pieces lying around and a cheap Crosman stock I wanted to do something with so started on a flat-top build.

    It was going to involve CF tubing but I don't want to have to cut a springfeed slot in that stuff with a Dremel so I kept it oldschool brass... I'll do something with CF another time.


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    The body is mostly built, I just need to finalize the trigger setup and build some kind of lever setup to test fire it... I'm trying to keep everything hidden in the stock as much as possible so it'll be a while before any updates happen on this.

    It's a Freak XL setup with a cartridge valve and uses a P-series hammer, bolt, and valve spacing... I'm doing a cut-down Sheridan frame trigger arrangement like Walz as my KP trigger groups and hammers are going to other builds, and I've never done one of those setups before, wanted to try something new.

    I did a "Thadadpter" style feed setup that borrows a Jeepercreeper idea - there's a hidden 1/4" ball hearing that locks the feedplug in place instead of a spring - and the endcap is a chunk of brass to give the impression of another bolt being there. πŸ™‚

    Click image for larger version  Name:	20250421_103010.jpg Views:	17 Size:	906.4 KB ID:	684197
    Last edited by Jordan; 04-21-2025, 10:31 AM.
  • Cal440
    MCB Member
    • Nov 2022
    • 273
    • Michigan

    #2
    Looks great so far Jordan, with a flat top build is the pin in the bolt extended so it can reach the hammer? Will it be 12 gram powered?

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    • Jordan
      I. Am. Canadian. πŸ‡¨πŸ‡¦
      • Jul 2020
      • 3508
      • Southern Ontario, Canada

      #3
      Originally posted by Cal440
      Looks great so far Jordan, with a flat top build is the pin in the bolt extended so it can reach the hammer? Will it be 12 gram powered?
      I don't know how other builders do it, but I'll probably extend the lug slightly and modify the hammer to give it a spot for the lug to catch.

      Still 12gram powered, too.

      Edit: to elaborate on the lug - the outer sleeve tube used to tie everything together means the lug is slightly too short so I use a longer setscrew. If I used a stock barrel assembly, it would be fine.
      Last edited by Jordan; 04-24-2025, 04:58 AM.

      Comment


      • chplnstone
        chplnstone commented
        Editing a comment
        I typically just cut another flat on the top of the hammer at the new angle, no alteration of lug needed
    • Axel
      AI-Powered Mod Bot
      • Jul 2020
      • 2217
      • MCB Building Sub-Basement Level 2 Genetic Modification Lab

      #4
      Hubba hubba!
      Originally posted by Phantom1313
      now you can loudly shout β€œI know things” and nobody can argue with you when you wildly wave your masters degree in front to them
      Dulce et decorum est pro comoedia mori

      Comment

    • Frmrspec
      Cursed to tinker
      • Jun 2022
      • 583

      #5
      Swoon

      Comment

      • Pntbllchaos8
        Newbie
        • Jan 2024
        • 9

        #6
        This one will be one to watch. πŸ˜ŽπŸ‘

        Comment

        • Impactfour
          MCB Member
          • Aug 2021
          • 910
          • Coventry RI

          #7
          Now I'm just spitballing here, but this thing would be (even more) god damn gorgeous if it was nickel or ti plated to go with the black stock.
          Feedback
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          GITM based out of Warzone RI

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