10-green-quad-rail-free-floating-mid-length-handguard-rail
10-green-quad-rail-free-floating-mid-length-handguard-rail, Includes: Top Rail section, Bottom rail section, Allen wrenchMaterials: 6061 Aluminum AlloyCompatibility: AR-15 Rifle with delta ring and front end cap installedWeight: 15 oz, Length: 10 in, Height: 2.5 inInternal Diameter: 1.7 inHigh Quality, Guaranteed, light (10 oz ) and durableBead Blast with Type III AnodizingPrecise CNC machiningMil-Spec 1913 Picatinny