???Features:
Gun rail mount for GoPro Hero1 2 3 3+ 4 cameras. 
Get first-person-shooter style shots or reverse the camera on yourself and watch yourself in action. 
Seconds to install -slide the mount over the rail， tighten， and screw-in your camera.
Comes with end bolt. 
No additional tools required.
Works for standard Glock style gun rails.
Perfect for hunters， law enforcement， recreational shooters， and so on.

Specifications:
Material: Aluminum + Metal
Color: Black + Silver
Weight: 29g / 1.02oz

Package List:
1 * Rail Mount
1 * Screw