AT500-XKIT-V2 Upgrade XKit V2 for ALIGN T-Rex 500 Electric Series Helicopters
AT500-KIT Upgrade Kit for ALIGN T-Rex 500 Electric Series Helicopters
AT500-ARB Anti-Rotation Bracket for ALIGN T-Rex 500 Electric Series Helicopters
AT500-BBU Bottom Bracket Upgrade for ALIGN T-Rex 500 Electric Series Helicopters
AT500-BMU Battery Mount Upgrade for ALIGN T-Rex 500 Electric Series Helicopters