Tier One Long Saddle Ring Top Accessory Rail Short 30mm Black. For use with Long Saddle Monomount only. Specifications for Tier One Long Saddle Ring Top Accessory Rail: Manufacturer: Tier One Color: Black Fabric/Material: Aluminum Package Contents: Tier One Long Saddle Ring Top Accessory Rail Nil Tier One T1MULARR30: Long Saddle Ring Top Accessory Rail Short 30mm Black