This universal adapter allows you to attach a camera or camcorder to Weaver rails, Picatinny rails, and NATO accessory rails. It allows you to attach the action cam via the tripod screw hole. For example, you can screw it onto a small digital video recorder (DVR) and mount the DVR on an airsoft gun or a paintball marker. Got an old point-and-shoot digital camera? This Airsoft3D mount adapter helps you re-use your old digital camera for a noble purpose... capture action videos as you play airsoft or paintball. You will need a 1/4"-20x0.5" screw and nut to fasten the action cam to this adapter. Then you will need a #6-32x1.25" screw and a #6-32 nut to fasten this mount to the accessory rail. The screws and nuts are not included, but can be easily sourced from your local hardware store (e.g. Home Depot, Lowes, etc.). Airsoft equipment and accessories used for illustration of this adapter are not included. WARNING: Although you can use this mount adapter on your real firearm, we have never tested it with real firearms before. We do not know if the firearm heat/recoil will or will not damage it or the object you will fasten to it. Use it with real firearms at your own risk.