RAM Round Post Clamp 1.5 Inch Ball Mount with Round AMPS Plate GPSMAP 742 or M5 depending on mounting

or M5 depending on mounting surface

Device Compatibility & Sizing

while the powder-coated marine-grade aluminum construction supports demanding mounting applications

5" rubber ball for vibration damping and secure hold

B size ball works with compatible RAM B size double socket arms

RAM Round Post Clamp 1.5 Inch Ball Mount with Round AMPS Plate GPSMAP 742 or M5 depending on mountingFeatures: Rail clamp base with 1. 5" rubber ball connected to marine grade aluminum casting Backing casting plate also of marine grade aluminum Includes 2 stainless steel bolts, nuts and cover caps Clamps to rails from 1. 25" 1875" in diameter works horizontally or vertically Standard size (medium) socket arm overall length of 5. 69": socket to socket length 4. 66" 2. 5" round base adapter with 1. 5" rubber ball and universal AMPs hole pattern