The Tactical Innovations® Elite22D "Detachable Rail" Flat Top Receiver is designed for customers that want a billet 10/22® compatible receiver in either a flat top configuration without an integrally machined rail while still having the ability to add a bolt on rail of the same or an alternate color. This receiver will also work with many chassis systems that are currently on the market (although we don't have a list of which work and which don't). For a quality build and optimal compatibility, we recommend and proudly stock Pike Arms® match grade parts and accessories.