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
Saco Defense Systems Division (Saco, ME) M60 E3 Light Machine Gun
Capable of blank-firing with the use of a blank adaptor or of live fire, this machine gun was featured in the Hollywood films "Rambo" and "Commando." Weighing 18 pounds, the E3 variant of the M60 features a shortened barrel and a pistol grip/heat shield in place of the standard M60 forearm. Modifications to feed system allows the cover to be closed with the bolt forward. The E3's gas system is also modified from that of the earlier M60. The M60 E3 is currently in use with various U.S. elite military units.