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
Romance Of The Long Rifle
The first distinctly American gun: The Kentucky rifle
Ambrose Frelig (Germany) Flintlock Jaeger Rifle
Anstate Pennsylvania/Kentucky Rifle 
D. Christ Pennsylvania/Kentucky Rifle 
English Smoothbore Muzzle Loading Air Rifle
Girardoni Air Rifle as used by Lewis and Clark
J. Cooper Left-handed Pennsylvania/Kentucky Flintlock Rifle
J. Graeff Flintlock Rifle
J. P. Beck Kentucky Rifle
J. S. Brooks Flintlock Pistol
Jacob Albright Kentucky Rifle
John Hagy (Lancaster, PA) Pennsylvania/Kentucky Flintlock Rifle
John Miles Flintlock Rifle
John Palm Swivel Barrel Flintlock Kentucky Long Rifle
JP Beck Wolfgang Hagy Flintlock Rifle
London-made copy of Lancaster Flintlock Rifle
Melchior Fordney Heavy-Barrel Flintlock Rifle w/ Double-Set Triggers
P. Quattlebuw Flintlock Rifle
Pennsylvania/Kentucky Flintlock Long Rifle
U.S./Harpers Ferry (Harpers Ferry, VA) Model 1803 Flintlock Rifle
U.S./Harpers Ferry Model 1792 Muzzleloading Flintlock Rifle