Kexuan Free Float KeyMod Handguard for .308 Low Profile Upper Receiver 12.5 in Black. Specifications for Kexuan Free Float KeyMod Handguard for .308 Low Profile: Manufacturer: Kexuan Color: Black Gun Make: AR Platform Gun Model: AR-10 Features of Kexuan Free Float KeyMod Handguard for .308 Low Profile Extremely stable platform for adding accessories such as scope sights tac lights & laser One piece machined with extra ventilation slots Length 10-7/16 in x Width 2.25 in x Height 2.5 in Includes: Aluminum barrel nut steel handguard slip ring and (2) 7 slot picatinny rail segments. Package Contents: Kexuan Free Float KeyMod Handguard for .308 Low Profile 2pcs 7 slot KeyMod to Picatinny rail adapters Kexuan MK38Y125: Free Float KeyMod Handguard for .308 Low Profile Upper Receiver 12.5 in Black