Finally got this awesome Obsidian Arms keymod rail mounted. This is one of the easiest rail systems I have installed. The quality and tight fit makes it look and feel like a rail that is 2x more expensive. This rail is made in the USA!! Originally, this 3 Gun rail was designed for competition shooters but is now being used in tactical applications. This rail comes in 4 different colors: DarkCrimson, LizardGreen, PatriotBlue and, Black.