Midwest Industries 1913 Mil Spec MI KeyMod Rails 3.75in 6061 Aluminum Hard Coat Anodized Black. Specifications for Midwest Industries 1913 Mil Spec MI KeyMod Rails: Manufacturer: Midwest Industries Color: Black Finish: Type III Hardcoat Anodized Fabric/Material: 6061 Aluminum Gun Rail: M-LOK Hand: Ambidextrous Gun Type: Rifle Gun Make: AR Platform Gun Model: Universal Width: 0.835 in Height: 0.748 in Quantity: 1 Country of Origin: USA Features of Midwest Industries 1913 Mil Spec MI KeyMod Rails Mounting hardware included Made to fit all makes of KeyMod Handguards Package Contents: Midwest Industries 1913 Mil Spec MI KeyMod Rails The Midwest Industries KeyMod 1913 MIL SPEC Rail Section 2.1 Inch Balck MI-SSK-R2.1 is a quality addition to the Midwest Industries lineup. For more great deals on M-LOK Picatinny Rail Sections by Midwest Industries please browse our Midwest Industries Gun Parts page. Midwest Industries MI-SSK-R375: 1913 Mil Spec MI KeyMod Rails 3.75in 6061 Aluminum Hard Coat Anodized Black