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Suomi Project Gun Parts

  • M31 Rear Sight - machined
    $12.00 M31 Rear Sight - machined
    Original Suomi KP31 rear sight machined to fit the radius of the a 1.375ø receiver tube.  These are the sights we use on the STG76w (Stemple-Suomi) machinegun.

  • Project Gun Pin
    $0.80 Project Gun Pin
    1/4 diameter x 1 1/4 long blued clevis pins   These are very useful for joining parts for project guns...

  • STG U & 76 Magazine Housing (complete)
    $245.00 STG U & 76 Magazine Housing (complete)
    Standard replacement magazine housing for 2011 pattern STG 76 and STG-U 9mm. This is a complete magazine housing for 1.375" OD Stemple 76/45 Receiver (STG-U and STG-76 pattern) to allow use with Finnish and Swedish pattern...

  • STG U-9mm, 76, 76W, 34k Ejector
    $15.00 STG U-9mm, 76, 76W, 34k Ejector
    Standard replacement ejector for Stemple STG pattern trunions:  STG U-9mm, STG 76, STG 76W, & STG 34k Includes ejector blade and retaining pin.

  • STG U-9mm, 76, 76W, 34k Trunion
    $200.00 STG U-9mm, 76, 76W, 34k Trunion
    Standard replacement Trunion Assembly for Stemple STG pattern trunions:  STG U-9mm, STG 76, STG 76W, & STG 34k Includes ejector and retaining pins.

  • STG-76W Sear (old pattern)
    $5.00 STG-76W Sear (old pattern)
        First pattern STG-76W sear for select-fire guns.  Made from 4140. Fitting and hardening may be required...

  • STG-U-34k/76/76W Buffer Rod
    $12.00 STG-U-34k/76/76W Buffer Rod
    STG Buffer Rod for STG34k, 76, 76W to be used with standard Suomi mainsprings

  • Suomi 9mm Barrel Drops - 3.125"
    $5.00 Suomi 9mm Barrel Drops - 3.125"
    3.125" by .76" OD  exc rifling 

  • Suomi KP31 Barrel Shim
    $2.75 Suomi KP31 Barrel Shim
    Copied from original parts and made from stainless steel.   Thickness .003"   This part tightens the barrel to jacket fit by 'shimming' the rear collar of the barrel.   This is a very useful part for...

  • Suomi Rear Cap Mount with Buffer
    $8.50 Suomi Rear Cap Mount with Buffer
      Assembly for mountain a Suomi buffer with having to thread the the rear of your receiver.  This is the setup we used to mount the buffer in our early STG34k guns.   This assembly includes: - 1 M31...

  • Trunion Retaining Pins
    $5.00 Choose Options Trunion Retaining Pins
    Standard set of replacement Trunion Retaining Pins.  (2 pins included)

  • AR Handguard Foregrip
    $2.50 AR Handguard Foregrip
    AR Handguard Foregrip:  Simply uses screws and nuts to attach to standard A2 and M4 handguards (mounting parts included).   Also fits shrouds for STG34k and STG76