Amazon.com: RAM Mounts Handlebar U-Bolt Mount for Garmin Astro 320, GPSMAP 62 & 64 Series RAM-B-149Z-GA41U with Medium Arm for Motorcycle, ATV/UTV, Bike : Everything Else
3Pack For Garmin Astro 320 220 Hiking Handheld GPS Navigator Explosion-proof Screen Protector High Clear Anti-shock Film - AliExpress
Used Garmin Astro 320,Garmin TT15 Used Dog Tracking Device Collar GPS Fits Garmin Alpha 100 Garmin Astro 320 Astro 430 Handheld - AliExpress
USED Garmin Astro 320 Handheld with 4 DC40 + 1 DC50 Collar - Garmin Product Store