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
Amazon.com: BoxWave Screen Protector for Garmin Astro 320 (Screen Protector by BoxWave) - ClearTouch Crystal (2-Pack), HD Film Skin - Shields from Scratches for Garmin Astro 320 : Electronics
Installing Software Updates to the Astro 320 | Astro® 320 | Garmin Customer Support