NightForce Rail Accessory Platform Improved RAP-I W/Multimount Cap 34mm Black. The skeletonized truss-like design allows for superior rigidity and point of impact retention of LRFs. The RAP-i includes the MultiMount ring cap that allows the RAP-i to be mounted on the Nightforce UltraMount Unimount 4-screw Xtreme Duty rings and 6-screw Xtreme Duty rings. The RAP-i is available in 30mm and 34mm diameter and Dark Earth or Black anodized finishes. Specifications for NightForce ail Accessory Platform Improved RAP-I W/Multimount Cap: Manufacturer: NightForce Fabric/Material: Steel/Aluminum/Titaium Finish: Matte Quantity: 1 Condition: New Package Contents: NightForce ail Accessory Platform Improved RAP-I W/Multimount Cap NightForce A686: Rail Accessory Platform Improved RAP-I W/Multimount Cap 34mm Black