Often maligned, but the first US-issue lightweight rifle-caliber machine gun suitable for trench clearing, this US Model 1918 Chauchat Light Machine Gun is chambered for the US .30 caliber (.30-06) cartridge. Serial number 1730.
(Top) Rare 1913 Parabellum Machine Gun “Lightweight” chambered for the 7.92x57mm Mauser round, serial number 4829 (with matching serial numbers). (Bottom) Also rare 1913 Parabellum Machine Gun “Lightened.” This machine gun started life as a water-cooled gun having been produced at DWM in 1917. Serial number 494.
The collection includes reference samples of various automatic sears and lower receivers, such as the wide assortment of MAC-type lower receivers in various stages of completion. Within the NFC resides an excellent collection of crewserved weapons and anti-tank rocket launchers, like the infamous RPG and the WWII-era British PIAT launcher. ATF does not purchase or accept donated weapons from industry into the collection so the vast majority of the reference pieces have been added to the collection as a result of FTBs daily performance of its extensive mission portrayed above.
Rare prototype 1915 Coventry-Laird Machine Gun. The correct name would be the Laird Meneyne-Degaille machine gun. The patents were applied for in 1909, and the British Small Arms Committee (SAC) ran limited trials on the weapon in 1913. The SAC determined that there needed to be “substantial improvements” on the system, including a box type magazine, before reconsideration. This example is dated 1915, and the system was offered by the manufacturer to other end users, but these were not adopted. 
7,62-mm automatic carbine design Garanin. Prototype 1945 g. Incomplete disassembly. Vasiliev’s full-auto device for Mosin-Nagant
Experienced Kalashnikov carbine 1944 (Russia)
