Hand Guard Kit, Mk3, RKM15Manufacture ID: 38DA22DHand Guard Kit, Mk3, RKM15Specifications:- Material: 6061-T6 Extruded Aluminium- Interface: KeyMod Universal Attachment System (3, 6, 9 o'clock positions) 1913 Picatinny Rail Top- Length: 14.94 Inches- Weight: 13.3oz (17.1oz with Barrel Nut)- Tools Needed: 7/32" 1 1/2" Dia Spanner Wrench (example link here), T25 Torx Wrench or Driver- Installation Instructions: RKM InstallationNOTE: Tools are NOT included