The Nemesis MXVII-10K is a Nerf blaster that was released in August of 2017 under the RIVAL series. It requires six "D" batteries or a Rechargeable Battery Pack to be operated. 1 Nemesis MXVII-10K 1 Nemesis hopper 100 High-Impact Rounds Instructions The Nemesis MXVII-10K is a fully-automatic flywheel blaster. Unlike previous blasters, the Nemesis uses a large removable hopper with an agitator that advances the rounds into its flywheels. The feeding mechanism will not operate when the hopper is r