Magnum Research BE99153RSL Baby Eagle III Semi-Compact 9mm Luger 3.85" 16+1 Black Black Carbon Steel Black Polymer Grip. The Baby Eagle 3 is a 9mm caliber double/single action pistol. This handgun features a 3.85 inch barrel along with a polymer frame and a carbon steel slide finished with a black oxide coating. It also features a combat type 3-dot sight set up and two 16 round magazines.