Summer 2026 Premier Firearms & Militaria Auction
August 5th, 6th, 7th, 8th, & 9th, 2026
This auction will feature an outstanding collection of items spanning multiple categories including Modern, Military, Sporting, & Antique firearms & militaria! Below is just a small grouping of select highlights from the massive offering to be featured in this upcoming sale!
FULLY TRANSFERABLE, GORGEOUS, COLT M2 WATER COOLED HEAVY MACHINE GUN ON ANTI-AIRCRAFT MOUNT WITH ACCESSORIES
03-2373 | Cal. 50 BMG. | S# 756402. | Bbl. 45″.
A much less seen water-cooled version of the big “Ma Deuce” mounted on a heavy M63 mount. The Browning M2HB, affectionately referred to in military circles as “Ma Duece” is another evolution of the successful John Browning designed, recoil operated & belt fed guns that populated the battlefields following WWI. In an effort to build a gun that was comparable to the French 11mm Hotchkiss, w/ a primary purpose of defeating observation balloons & aircraft, the .50 BMG was designed and introduced for the M1921A1, which was quickly modified & reintroduced as the M2. Barrel heating issues would lead to the heavy barrel version that we now know as the M2HB. The water-cooled variant had a big jacket around the barrel, filled w/ water to assist in cooling. This example was manufactured by Colt. Hooded front sight (missing blade) w/ coinciding rear ladder sight adjustable to 2600 yards. 39″ barrel water jacket measuring almost 4.75″ in diameter. Spade grips w/ “butterfly” thumb trigger. Manufacturers markings on right sideplate clean & crisp. Right sideplate marked: “U.S. NO. 756402 GOVT. INSP. G.H.D. / BROWNING MACHINE GUN CAL. .50 M2 / MANUFACTURED BY COLT’S PATENT FIRE ARMS MFG. CO. / HARTFORD CONN. U.S.A.” above patent numbers. US Ordnance bombs stamped to right. Mounting system includes functional remote trigger mechanism. Left-side, mount for ammo can / drum. UNATTACHED ACCESSORIES: 15″x14″x14″ water can w/ internal pump, cooling hoses, unopened can of 110 rounds of linked M33 Ball ammo, Perfex Co. Telescopic Sight on leather case, 105 rd. ammo can & 2 cleaning rids, 1 still in original box, unassembled. PROVENANCE: Military Museum Collection of Shooters Outpost, Hooksett NH. NATIONAL FIREARMS ACT MG REQUIRING BATF TRANSFER BEFORE TAKING POSSESSION. FULLY TRANSFERABLE. STATUS: CURIO CLASS III.









