Viper Lifter Weapon

Original price was: $50.00.Current price is: $45.99.

Be like Bronco! Get your Combat Robot a powerful Viper Lifter Weapon!

  • Add a powerful servo and lifting arm to lift and topple your opponents.
  • Mounts on the existing Viper Combat Robot
  • No soldering required!

Original price was: $50.00.Current price is: $45.99.

28 in stock (can be backordered)

SKU: ft-viper-lifter-addon Categories: , , Tags: ,

Product Documents

CAD Files


Take your Viper Combat Robot kit to the next level by adding a powerful servo-actuated Viper Lifter Weapon!

Kit Includes:

  • Servo: GS-5515MG servo with FingerTech Servo Mounts
  • Lift Arm: Spring steel Scoop and Linkage, Polycarbonate arms, threaded Crossbar, two 2×1 Mini NutStrip pieces
  • Screws: Nine 4-40×0.25″, eight 6-32×0.25″ and four 6-32×0.5″ screws plus hex wrench.
  • Instructions: Detailed instructions with pictures. (Download here)


  • Lift Height: 19cm (7.5in) – 90 degrees (can self-right from upside down!)
  • Weight: 117grams (4.1oz) – added onto the Viper base, the total will be 427grams (15.1oz).
  • Voltage: The servo can operate up to 9V.

Note: The 7.4V lipoly battery used for the Viper kit works great. If you wish to run the Viper off an 11.1V lipoly battery, a 9V regulator must be added.


  • Threadlock liquid
  • Electrical tape
  • Phillips screwdriver

Parts of the Viper Lifter Arm Upgrade Kit

Weapons and weapon selection are critical decisions for your your combat robot.  Each robot has its own offensive strategy, and its own defensive strategy.  Lifters have proven to be very successful offensive weapons.  If you can flip the opposing bot over, you can destabilize their offensive and even win the match.  Lifters are very effective against many difficult to defend against bots.  Flipping becomes a serious attack and defense strategy, and one that is relatively easy to implement and less destructive to the bot.  The Viper Lifter Weapon is an excellent strategy for your combat robot.