Amazon.com: Blaster Gun with Protective Goggles and 100 Rounds for Boys and Girls Up to 110 FPS Compatible with Nerf Hyper Rounds Darts, Easy Reload, Holds Up to 50 Rounds (Camo) :
Amazon.com: NERF Hyper Rush-40 Pump-Action Blaster, 30 Hyper Rounds, Eyewear, Up to 110 FPS Velocity, Easy Reload, Holds Up to 40 Rounds : Toys & Games
Nerf Hyper Rush-40, Siege-50 and Mach-100 review: where the rubber meets the foam - The Verge
NERF Hyper Mach-100 Blaster Holds 100 Rounds
Nerf Hyper Siege-50 Pump-Action Blaster and 40 Hyper Rounds 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