MG 3 Nerf Machine Gun Electric Nerf Gun (warhammer 40k strategy game, nerf 50 cal, top ten nerf guns)
Amazon.com: Nerf Centurion Mega Toy Blaster with Folding Bipod, 6-Dart Clip, 6 Official Nerf Mega Darts, and Bolt Action for Kids, Teens, and Adults (Amazon Exclusive) : Toys & Games
M2HB blaster out of China found on Taobao for ~$50 : r/Nerf
F10555 Prophecy Retaliator Barrett Kit
Amazon.com: NERF Elite Titan CS-50 Toy Blaster -- Fully Motorized, 50-Dart Drum, 50 Official Elite Darts, Spinning Barrel -- for Kids, Teens, Adults : Toys & Games