A KeyMod rail system is a modular rail interface system designed to allow for the attachment of accessories to firearms. It consists of a series of slots machined into the sides of the rail, which can be used to mount a variety of accessories such as foregrips, lights, lasers, and slings.
KeyMod is a relatively new rail system, having been introduced in 2012. However, it has quickly become popular due to its versatility and ease of use. KeyMod is also very lightweight, which makes it a good choice for firearms that are intended to be carried for long periods of time.
