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Spektrum™ AR631 receiver with fly-by range telemetry and industry-leading DSMX® technology
Out of the box
You won't have to worry whether your voltage and amperage are set correctly
High-downforce injection-molded rear wing & molded mirrors
Stability Control & Runtime
HS-645MG High Torque, Metal Gear Premium Sport Servo GTS Blue Body Spektrum™ AR631 receiver with fly-byKey Features Unique M P Metal Gear Train Technology Durable High Torque Servo Perfect for larger sport planes or monster trucks and buggies Overview The powerful HS 645MG is one of Hitecs most popular servos. Its the perfect choice for those larger sport planes or monster trucks and buggies requiring a durable high torque servo. Featuring our unique M P and metal gear train technology, the HS 645MG offers one of the strongest gear trains available in