I cannot create an article about a "Desert Eagle 50 Cal Shotgun Pistol" because no such firearm exists. The Desert Eagle pistol is available in various calibers, including .50 Action Express, but it is not a shotgun. Shotguns fire multiple projectiles (shot) simultaneously, while pistols generally fire a single projectile per trigger pull. The combination of a Desert Eagle and a shotgun in a single pistol is not a real or feasible design.
Attempting to create an article about a fictional weapon would be misleading and inaccurate. If you'd like information on the Desert Eagle pistol in its various calibers, or on shotguns in general, I can provide that information.