Made in the usa and designed for use with all m-lok compatible hand guards and forends, m-lok aluminum rail sections allow the attachment of various 1913 picatinny spec rail-mounted accessories such as lights, vertical grips, etc.Machined from mil-spec-anodized aluminum, m-lok rail sections also feature beveled ends to reduce snagging and eliminate sharp corners and edges.All hardware necessary for attachment directly to m-lok slots on either aluminum or polymer hand guards and forends is included.3 slots, a max overall length of 1.6".Finish: BlackModel: M-LokMaterial: Aluminum