Picatinny Rail to Foam Dart Rail (7-Slots) Adapter for Airgun, Airsoft Gun, Foam Dart/Ball Blaster, and Paintball Marker - AirPower3D Color:Glow in the Dark Blue You will need a M5x25mm

You will need a M5x25mm (or #10-32x1") screw and a nut to fasten the Contour action cam onto the Picatinny rail

two screws are included when you order the lid

com/gp/product/B00VVEOB54

It is compatible with the following Contour models:

You can get the Umarex Glock 17 Gen4 GBB Airsoft Gun from Amazon here:

Picatinny Rail to Foam Dart Rail (7-Slots) Adapter for Airgun, Airsoft Gun, Foam Dart/Ball Blaster, and Paintball Marker - AirPower3D Color:Glow in the Dark Blue You will need a M5x25mmThis AirPower3D product is a Picatinny tactical rail to foam dart tactical rail adapter. It lets you convert the Weaver rail or Picatinny rail on your airsoft gun, paintball marker, foam dart blaster, and or airgun to a foam dart rail for attaching foam dart accessories. For example, if you have a iPhone bracket that fits the foam dart ball rail, but won't fit the Picatinny rail, you can use this adapter to make it work. This adapter is excellent for