Christensen Arms Modern Precision Rifle Chassis, Tungsten Cerakote, Fits Remington 700 Short Action, 14 M-Lok Forend 810-00001-21 The right foundation matters. The Christensen Arms MPR chassis is the same ultra-lightweight adjustable system found on the Modern Precision Rifle" now offered as an individual component. Born of our obsession with carbon fiber and brought up by hand in the USA the platform delivers effortless form and function-all weighing less than 3 and a half pounds. Currently available for Remington 700 footprint short and long action receivers.