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
DPMS M160 Selective-Fire Rifle
Built as a display piece for the National Firearms Museum, this selective-fire rifle is a commercial version of the M16A2 rifle utilized by the US military. This rifle incorporates the tri-burst (three shot automatic fire capability) feature incorporated into US service rifles to minimize "spray and pray" and maximize controlled fire capability.