Nerf Hyper Siege-50 Pump-Action Blaster and 40 Nerf Hyper Rounds, 110 FPS Velocity F0532 - Best Buy
If Nerf Hyper rounds are 13-14mm diameter, then it stands to reason that with minor modifications the Sportsman would be able to fire them. With a massive hopper it may make for
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Nerf Hyper Rush-40, Siege-50 and Mach-100 review: where the rubber meets the foam - The Verge
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