Kinetic Development Group, LLC, Front Sight Replacement Rail, Replaces the SCAR Front Sight, Anodized Finish, Black NEW Anodized Finish Replaces the SCAR Front Sight Due to manufacturing imperfections with the casting on the gas block, alignment cannot be 100% guaranteed from rifle to rifle Product Description KDG front sight replacement rail piece was designed to provide extra rail in place of the OEM FN Scar front iron sight. This allows the user to replace the OEM iron sight with any aftermarket iron sight of your choice. Or if so chosen, this rail segment will also give added room for other accessories like pressure switches, and laser / light devises. Manufactured from 6061 aluminum and anodized for a hard coat finish. Product comes with setscrew for installation. Please Note: Due to manufacturing imperfections with the casting on the gas block, alignment cannot be 100% guaranteed from rifle to rifle