A KeyMod rail system is a modular rail interface system designed to permit for the attachment of equipment to firearms. It consists of a sequence of slots machined into the edges of the rail, which can be utilized to mount a wide range of equipment reminiscent of foregrips, lights, lasers, and slings.
KeyMod is a comparatively new rail system, having been launched in 2012. Nonetheless, it has rapidly develop into widespread as a result of its versatility and ease of use. KeyMod can be very light-weight, which makes it a sensible choice for firearms which might be supposed to be carried for lengthy durations of time.