The rail mount adapter for the RAM-114BMU base; this adapter joins to base plates with the screws provided and turns the flat base into a rail base. The adapter is a U shape, so it can wrap around a tube mount and the clamp by joining to the flat base. Compatible with 7/8″ – 1″ round rails, and 1″ square rails.
Rail adapter conversion kit designed to install with the RAM® bulkhead base for mounting to rails .875″ to 1″ in diameter, Made of high-strength composite material, Backed by a lifetime warranty