Manufactured by the Buffalo Arms Corporation, the M2 .30 Cal saw use during World War II as aircraft armament for both fixed wing and flexible mounts, such as the rear guns on the Douglas Dauntless dive bomber and the PBY Catalina flying boat. It also earned fame in it's unofficial squad automatic weapon variant on Iwo Jima, where the Marines had a limited number of M2s customized for ground fighting, known as "The Stinger". A Browning MG variant, the M2 .30 Cal essentially back-ported some of the features implemented on the .50 BMG M2 to the smaller form factor, with a significant rate of fire, reversible feed, and multiple trigger options. Blade front and folding ladder rear sights, with a ventilated heat shield, right handed feed configuration, and the maker's markings and nomenclature on the right sideplate. A long, lightly knurled cocking handle is fitted to the right side, with a pair of smooth "spade" grips and a knurled thumb trigger with integral safety.

Very fine, with 75% of the parkerized finish, showing scattered wear and handling marks, spotting, and edge wear. A few areas of touch-up are visible on the heat shield, and the rear sight appears to be a replaced component with some surrounding areas ground for a flush fit during the installation. While registered as a .30-06 caliber, a guide bar has been added to the feed tray which restricts the length to about 2 3/4, closer to 7.62mm NATO; the exact chambering is not guaranteed. Mechanically fine. NOTE: This weapon is a National Firearms Act (NFA), fully transferable Class 3, which is registered with the Bureau of Alcohol, Tobacco, Firearms and Explosives, (BATFE) that is classified as a "Curios or Relic" as defined in 27 CFR, 478.11. These weapons are still subject to the provisions of 18 U.S.C. Chapter 44 and 27 CFR part 478.