Battle Steel Benelli M4 Top Rail w/ Integrated Aimpoint & HoloSun Micro Sight Base 6061 Aircraft Grade Alumiuim. Type Ii Class Iii Hard Anodized. Incudes 4 Aimpoint Micro Screws And 4 Top-rail Screws Specifications for Battle Steel Benelli M4 Top Rail w/ Integrated Aimpoint & HoloSun Micro Sight Base: Manufacturer: Battle Steel Color: Black Finish: Class III Type II Hard Coat Anodized Fabric/Material: 6061 Aircraft Grade Alumiuim Gun Type: Shotgun Gun Make: Benelli Gun Model: Benelli M4 Features of Battle Steel Benelli M4 Top Rail w/ Integrated Aimpoint & HoloSun Micro Sight Base Replaces the Original Top-Rail Will Work With All Aimpoint & Holosun Micro Sights True Co-Witness Package Contents: Battle Steel Benelli M4 Top Rail w/ Integrated Aimpoint & HoloSun Micro Sight Base 4 Aimpoint Micro Screws 4 Top-Rail Screws Battle Steel BATTLESTEEL-418777: Benelli M4 Top Rail w/ Integrated Aimpoint & HoloSun Micro Sight Base 6061 Aircraft Grade Alumiuim