This Mobius camera mount attaches to any picatinny or weaver rail. With this mount you are able to simply slide in a forward facing camera (muzzle cam) when the mount is on the right side of the gun or a rear facing camera (selfie) if the mount is on the left side of the gun. This makes for endlessly entertaining gameplay footage for airsoft or paintball players. Might be usable on real steel guns as well. Because the mount is plastic it is very light and does not add much weight to the front of the gun. It only takes up one spot on the rail. The mounts have been designed to address some of the issues on the Mobius cameras such as the SD card popping out, an added wall makes that impossible as long as the camera stays in place. Please Note: The mount does require a user added nut and bolt. If using a longer than allotted bolt drop it in from the top (mount closest to the rail) and add the nut at the bottom. Otherwise you can glue the nut into the camera base and screw in bolt through the bottom opening in the rail clamp. For the paranoid types add a zip tie around the camera for an extra level of retention. Uses: This mount is designed for one camera. On the right side of the gun it function as a muzzle camera facing towards the front of the gun on the left side of the gun it works as a selfie camera.