Leapers, Inc. develops, manufactures, and distributes a wide range of innovative and technologically advanced hunting and shooting sport oriented products across a multitude of different platforms. This is the UTG Pro super slim, carbine length, drop in MLOK rail system for AR-15 rifles. It features 24 M-LOK slots on 6-slot tracks for mounting M-LOK rails and direct accessories, making it easy for the user to tailor the rifle to their specific requirements Features : Black finish Swivel adaptor for sling swivel attachment Top Picatinny rail provides ample space for optics and other accessories