Join MacDanny as he takes the Nerf Rival Prometheus to the next level by constructing the epic 'King Prometheus' blaster! Watch step-by-step as he builds a custom 2500-round hopper, extends the barrel ...
Gear-obsessed editors choose every product we review. We may earn commission if you buy from a link. Why Trust Us? Last year, Nerf released its Rival Nemesis MXVII-10K, a 100-round, full-auto ...
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