The Nerf Rival Nemesis Blaster MXVII-10K Blue Magazine Holder is a replacement accessory for the Nerf Rival Nemesis Blaster, manufactured by Rival in 2018. Designed for ages 14 and up, this product is part of the Nerf Rival product line and is made in China. This magazine holder allows users to easily attach and use additional magazines for their Nerf Rival Nemesis Blaster, increasing the blaster's capacity and allowing for longer playtime during outdoor activities. With a durable construction and compatibility with the Nerf Rival product line, this magazine holder is a practical addition for Nerf enthusiasts.