RAM 1″ Diameter Ball Short Double Socket Arm with 2.5″ Round Base that contains the AMPs Hole Pattern – Overall Length: 3″
The RAM-B-103U-A consists of a 2.5″ round base and SHORT double socket arm that will accept 1″ ball bases. The round base contains pre-drilled holes, including the universal AMPS hole pattern. Designed into the mount is a 1″ diameter patented rubber ball and socket system with adjustment points at both ends of the socket arm; this with a twist of the arm knob allows for you to maneuver the mount to your optimum viewing position.
Dimensions:
Overall Length: 3″
Material:
Powder Coated Marine Grade Aluminum
Ball Size:
1″ Rubber “B” Ball Size
Note:
The “U” in the part number reflects product packaged in poly bag.

![RAM Mount Composite Short Socket Arm w/2 Diamond Bases [RAP-B-102U-A]](https://www.yachtseatworks.com/wp-content/uploads/2026/10/ram-mount-composite-short-socket-arm-w-2-diamond-bases-rap-b-102u.webp)
![RAM Mount 6.25" x 2" Rectangle Base w/1" Ball [RAM-B-111BU]](https://www.yachtseatworks.com/wp-content/uploads/2026/10/ram-mount-6-25-x-2-rectangle-base-w-1-ball-ram-b-111bu.webp)
![RAM Mount 1.5" Ball Short Arm w/2.5" Round Base [RAM-103U-B]](https://www.yachtseatworks.com/wp-content/uploads/2026/10/ram-mount-1-5-ball-short-arm-w-2-5-round-base-ram-103u-b.webp)
![RAM Mount Flex Adhesive Mount w/Diamond Adapter [RAP-B-378-238U]](https://www.yachtseatworks.com/wp-content/uploads/2026/10/ram-mount-flex-adhesive-mount-w-diamond-adapter-rap-b-378-238u.webp)
![RAM Mount 4.75" Square Base VESA Plate 75mm and 100mm Hole Patterns w/Long Surface Mount [RAM-101U-D-246]](https://www.yachtseatworks.com/wp-content/uploads/2026/10/ram-mount-4-75-square-base-vesa-plate-75mm-100mm-hole-patterns-w-long-surface-mo.webp)
![RAM Mount 3.625" Vesa Plate w/75 x 75mm Hole Pattern and Short Arm Surface Mount [RAM-101U-B-2461]](https://www.yachtseatworks.com/wp-content/uploads/2026/10/ram-mount-3-625-vesa-plate-w-75-x-75mm-hole-pattern-short-arm-surface-mount-ram-.webp)
![RAM Mount 1.5" Diameter Ball Mount w/Long Double Socket Arm, 2.5" Round Base &(AMPs) & 3.625" Square Base (VESA) [RAM-101U-D-2461]](https://www.yachtseatworks.com/wp-content/uploads/2026/10/ram-mount-1-5-diameter-ball-mount-w-long-double-socket-arm-2-5-round-base-amps-3.webp)
![RAM Mount 1" Diameter Ball Mount w/Long Double Socket Arm & 2/2.5" Round Bases - AMPS Hole Pattern (7-5/16" Length) [RAM-B-101U-C]](https://www.yachtseatworks.com/wp-content/uploads/2026/10/ram-mount-1-diameter-ball-mount-w-long-double-socket-arm-2-2-5-round-bases-amps-.webp)