Description Detailed Specs Downloads Reviews Description RAM MOUNT, UNPKD RAM 2 5/8 INCH DIA. RISER PLATE Detailed Specs MFG Part Number RAP-403U Product Type Accessory configuration Ram Mounts, UNPKD RAM 2 5/8-inch DIA. riser plate null null null null null null null null null null Downloads Reviews The Ram Mounts RAP-403U is also known as RAM -RAP403U or RAP403U