Best Buy: Hasbro Nerf Rival Perses MXIX-5000 Toy Blaster Styles May Vary E4450
Amazon.com: Nerf Pro Gelfire X MrBeast Full Auto Blaster & 20,000 Gelfire Rounds, 300 Round Hopper, Rechargeable Battery, Eyewear, Ages 14 & Up : Toys & Games
3d printed Rival hopper for the knockout. Can hold 5+1 in the chamber and makes reloading faster. : r/Nerf
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