The Galleries
- Robert E. Petersen Collection
- Ancient Firearms - 1350 to 1700
- Road to American Liberty - 1700 to 1780
- A Prospering New Republic - 1780 to 1860
- A Nation Asunder - 1861 to 1865
- The American West - 1850 to 1900
- Innovation, Oddities and Competition
- Theodore Roosevelt and Elegant Arms - 1880s to 1920s
- World War I and Firearms Innovation
- WWII, Korea, Vietnam and Beyond - 1940 to Present
- For the Fun of It
- Modern Firearms - 1950 to Present
- Hollywood Guns
General Officers Pistols
- Admiral Sir A. B. Cunningham's U.S./Colt M1911A1 Semi-Automatic General Officer's Pistol
- Brigadier General Chuck Yeager's Beretta (Brescia, Italy) Model 1935 Semi-Automatic Pistol
- Douglas MacArthur's Colt (Hartford, CT) Model 1903 Semi-Automatic Pistol
- General Bruce Palmer, Jr.'s U.S./Colt M1903 Semi-Automatic General Officer's Pistol
- General Frank T. Mildren's U.S./Colt M1903 Semi-Automatic General Officer's Pistol
- General Hugh P. Harris' U.S./Colt M1903 Semi-Automatic General Officer's Pistol
- General Isaac D. White's U.S./Colt M1908 Semi-Automatic General Officer's Pistol
- General Joseph Foss' Colt Model 1911A1 Semi-Automatic General Officer's Pistol
- General Merriam's Mauser (Oberndorf, Germany) M1934 General Officer's Pistol
- General Poe's Smith & Wesson M39 U.S. Air Force Semi-Automatic General Officer's Pistol
- Lieutenant General Ridgely Gaither's U.S./Colt M1908 Semi-Automatic General Officer's Pistol
- Lt. Gen. Richard Meyer's U.S./Colt M1903 Semi-Automatic General Officer's Pistol
- Major General John C. Raaen, Jr.'s U.S./Colt M15 Semi-Automatic General Officer's Pistol
- Major General Pepke's Chinese M20 Tokarev Pistol
- Major General Richard A. Bresnahan's U.S./Colt M1903 Semi-Automatic General Officer's Pistol
- USMC Commandant PX Kelley's Beretta (Accokeek, MD) M9 General Officer's Pistol