Worker is probably the number 1 Nerf blaster aftermarket part manufacturer in the market currently. Based in China, due to the superior product build quality, Worker products find it's way to Nerfers all around the world and it have been the go to manufacturer for Nerfers around the world. Started off by making one of the best quality Nerf magazine, Worker have found themselves producing almost every aspect of Nerf modding part that you can possibly imagine. Ranging from springs, flywheel cages and currently they also offering custom Nerf blaster shell with superior build quality. Worker products are known to be affordable with fantastic build quality. No doubt, they are the king when it comes to Nerf aftermarket part.