The Ruger RXM is an U.S.-made, optic-ready, striker-fire alliance between Ruger and Magpul. The RXM chambers 9mm in a 4-inch barrel and features a removeable serialized chassis system to support interchangeable grip modules, accepts affordable Magpul GL9 magazines and is ready to accommodate future enhancements. With Eric Poole, James Tarr and Doug Koenig.