Accuracy Solutions Picatinny Rail 13-Slot KeyMod Black Picatinny Rail KeyMod. We seldom see rails built by others that are true to the KeyMod standard respecting every detail that the standard calls for. Most of the cheaper available rails are cheaper for a reason: they are missing most of the important features in which the KeyMod rails depend to provide years of dependable functionality. Rails are built to the KeyMod standard respecting every detail in it. Specifications for Accuracy Solutions Picatinny Rail 13-Slot KeyMod Kit: Manufacturer: BipodeXt Color: Black Finish: MIL-A-8625 type III class 2 anodizing Fabric/Material: 6061-T6 Aluminum Gun Rail: Picatinny Length: 5.5 in Weight: 1.75 oz Mount Type: KeyMod Package Contents: Accuracy Solutions Picatinny Rail 13-Slot KeyMod Kit Accuracy Solutions Pic Rail KeyMod: Picatinny Rail 13-Slot KeyMod Black