The entire Mark XIX Component System is based on a single platform. With its gas operation, rotating bolt and all-steel construction, this is the heart of the firearm. Once you've purchased a Mark Desert Eagle Pistol, you can change the barrel length or the caliber in seconds, if you have the appropriate components on hand. Weighing at almost 5 pounds, the stout Desert Eagle has always been a hefty magnum handgun.  Now, Magnum Research is proud to introduce two lighter weight models which make a noticeable difference when handling the pistol.  Through the use of an alloy frame and weight reducing cuts, the Desert Eagle L5 and the L6 are just under one pound lighter than the steel framed models. The single action pistol has a crisp 4-pound trigger pull. The lightweight L5 and L6 Desert Eagles take the same magazines as the current steel models.