This is a conversion spring to adapt button lock knives into a fully automatic switchblades. This spring fits all Small model Boker Button Lock Series knives which include the Magnum Series. This also fits the Small model Smith & Wesson Extreme Ops Button Lock Series.

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  $10.00 US

  $15.00 CAN

  £7.95 UK

  €10.25 Euro

  $15.99 AUD

  $15.00 International

This is a conversion spring to adapt button lock knives into a fully automatic switchblades. This spring fits all Large model Boker Button Lock Series knives which include the Magnum Series and Kalashnikov Series. This also fits the Large model Smith & Wesson Extreme Ops Button Lock Series.

- Play Video

  $10.00 US

  $15.00 CAN

  £7.95 UK

  €10.25 Euro

  $15.99 International

  $15.00 International