So, you’ve done your research and found that Piston Systems offers improved reliability, keeps internals cleaner, and maintains moving parts cooler. Now, if you’re considering switching but don’t know where to begin, this is the solution. A straightforward, easy-to-install kit can upgrade your old DI rifle to the modern age without the expense of buying a whole new rifle. And when we say easy to install, we mean it! We provide all you need to customize your next favorite gun.