MOD GUIDE: Nerf Elite Strongarm - 100ft+ w/ spring replacment, rear loading, and more - YouTube
Amazon.com: NERF Strongarm N-Strike Elite Toy Blaster with Rotating Barrel, Slam Fire, and 6 Official Elite Darts for Kids, Teens, and Adults (Amazon Exclusive)
Amazon.com: Nerf Strongarm N-Strike Elite Toy Blaster with Rotating Barrel, Slam Fire, and 6 Official Elite Darts for Kids, Teens, and Adults (Amazon Exclusive) : Toys & Games