Holosun KPLT-MOS9MM Black Compatible w/Holosun 407/507K
http://www.tandktactical.com/shop/810047071136-holosun-kplt-mos9mm-black-compatible-w-holosun-407-507k-31646
http://www.tandktactical.com/web/image/product.template/31646/image_1920?unique=37f70f2
This plate is specifically designed for MOS model Glocks to allow them to fit optics that use the Holosun K footprint.
