When it comes to bolt action rifles, there are none more famous than the Remington 700. The American Built Arms MOD X Modular Rifle System chassis is a lightweight, drop in chassis for the Remington 700 Short Action. It serves as a modular foundation on which tactical accessories can be added according to the operators needs. The chassis is manufactured out of aluminum, hard coat anodized to Mil-Spec Type III specifications, with a full length MIL-STN-1913 rail. The built in mounting rail has 20 MOA on the action housing and is parallel to the barrel axis on the forearm.