Ravin Iron Sight Adapter Machined aluminum; Mounts to the Picatinny rail; Used to add an iron sight; Does not include iron sights; For use with R10 & R20 onlytable.productattributes, .productattributes td { border-bottom: 1px solid #ddd; border-collapse: collapse; padding: 2px; text-align: left; } Item Category Code: 3300 Product Group Code: 3300J Inactive: Yes