because of the metal and delrun mix its very light reducing kick
many people say to get titanium but the reason this thing helps is because its light so its easier to push back and forth also it reduces friction and when the ram hits its sooo light the gun wont recoil as much so your accuracy is better. ive also heard that the stainless ones can hurt the gun because its heavier.
buy it and shut up one of the best things you can do. to the gun anyway