Results 1 to 4 of 4

Thread: Possible PKM improvement - use of a Side Hammer and Striker Plate?

  1. #1
    Happy Camper hcpookie's Avatar
    Join Date
    Feb 2004
    Location
    Colorado Springs
    Posts
    7,690
    Feedback Score
    3 (100%)

    Default Possible PKM improvement - use of a Side Hammer and Striker Plate?

    I am researching an improved design for my PKM trigger group.

    I have planned to build what I would call a "swing hammer" or a "side hammer" that contacts a striker plate which in turn touches the firing pin. In my mind I see an old-time howitzer breech where they close the door, and someone pulls on the rope attached to a striker to hit the primer. Along those lines, put the "striker plate" over the firing pin, and instead of a rope ( ) put a hammer.

    The beauty of this is that the room behind the carrier, and in front of the back end of the PKM receiver (when the carrier is in battery) will let me put a hammer "beside" the carrier so that I can modify AK parts.

    Another advantage is that since this is not based on the M60 semi-only conversion, it will not need a tube for the striker. Which is OK for a fixed stock, but on the skeleton stock of a PKM the tube is exposed (as is the case with the one commercial design I've seen).



    It appears that Swiss use the side hammer design with a striker plate or transfer arm on at least one of their designs. I think it is the STG-57, but I can't be sure.

    Can someone enlighten me on the Swiss design? I've looked around and can't find good information about the action.
    Gunco Member #10

    http://pookieweb.net


    The "original" Boltcutter Rivet Squeezers:
    http://pookieweb.net/AK/rivet/boltcutters/boltcutter.htm


    Project Pink - the Pink and Blue AK-74:
    http://pookieweb.net/pink/pink.htm

  2. #2
    Administrator pirate56's Avatar
    Join Date
    Dec 2004
    Posts
    4,996
    Feedback Score
    31 (100%)

    Default

    the sig amt and pe 57 use a side hammer. I will look at them tonight and post photos.

  3. #3
    Happy Camper hcpookie's Avatar
    Join Date
    Feb 2004
    Location
    Colorado Springs
    Posts
    7,690
    Feedback Score
    3 (100%)

    Default

    Thanks! I think it was Plinker that suggested I look at those for inspiration.
    Gunco Member #10

    http://pookieweb.net


    The "original" Boltcutter Rivet Squeezers:
    http://pookieweb.net/AK/rivet/boltcutters/boltcutter.htm


    Project Pink - the Pink and Blue AK-74:
    http://pookieweb.net/pink/pink.htm

  4. #4
    Happy Camper hcpookie's Avatar
    Join Date
    Feb 2004
    Location
    Colorado Springs
    Posts
    7,690
    Feedback Score
    3 (100%)

    Default

    WELL LOOKIE HERE!!! This is EXACTLY what I had in mind - note the way the hammer is off to the side and not centered in the receiver. *THIS* my friends is how I envision the semi-only PKM being able to work without a semi-only M60-style striker tube:

    http://www.biggerhammer.net/sigamt/iar/

    Assuming the SG 510 has been readied to fire, with safety off, the operation is as follows:

    By pulling the trigger, the hammer (14) is freed from the sear (5). The hammer (14) is catapulted against the firing lever (11), through thrust pressure generated by the mainspring (9). The firing lever (11) in turn impacts the firing pin, igniting the cartridge in the chamber.
    Gunco Member #10

    http://pookieweb.net


    The "original" Boltcutter Rivet Squeezers:
    http://pookieweb.net/AK/rivet/boltcutters/boltcutter.htm


    Project Pink - the Pink and Blue AK-74:
    http://pookieweb.net/pink/pink.htm

Search tags for this page

There are currently no search engine referrals.
Click on a term to search our site for related topics.

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •