Bravo Company's BCMGUNFIGHTER PKMR (Polymer KeyMod Rail) Carbine Length is a direct replacement handguard featuring a simple drop in design. It is for Mil-Spec M4 type AR15's with a carbine length gas system and Mil-Spec front sight base. With its natural ergonomics" it is slim" comfortable and lightweight. It has an aggressively textured area for enhanced traction and a reinforced KeyMod interface for durable accessory support. The aluminum heat shield reduces heat transfer to the handguard and shooters hand. Made in the USA.