Accuracy Solutions BipodeXt Picatinny Rail KeyMod Kit Black. 5 in. Accuracy Solutions rails are built to the KeyMod standard respecting every detail in it. Accuracy Solutions rails are made from 6061 T6 Aluminum. They are coated to the U.S. MIL-A-8625 Type III Class 2 Anodize specification. This rail is U.S. MIL-STD-1913 compliant and attaches to KeyMod STD. It comes with KeyMod hardware and hex wrench. Specifications for Accuracy Solutions BipodeXt Picatinny Rail KeyMod Kit: Manufacturer: Accuracy Solutions 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 BipodeXt Picatinny Rail KeyMod Kit Accuracy Solutions TAC-01101: BipodeXt Picatinny Rail KeyMod Kit Black