The Galleries
- Robert E. Petersen Collection
- Ancient Firearms
- The Road to American Liberty
- Seeds of Greatness
- The Prospering New Republic
- A Nation Asunder
- The American West
- Innovation, Oddities and Competition
- Theodore Roosevelt, Elegant Arms
- World War I and Firearms Innovation
- WWII, Korea, Vietnam and Beyond
- For the Fun of It
- Firearms Traditions for Today
- William B. Ruger Special Exhibits
- Freedom's Doorway
Langenhan FL Selbstlader pistol
Semi-automatic pistol design that was exclusively for German military service. The locking system, which included a screw mounted breechblock separate from the slide, had shortcomings in actual usage. Wear and tear often resulted in the retaining yoke and screw jumping free, allowing the breechblock to blow straight back into the shooter's face.