M-63 anti-aircraft mount for M2 Browning

Original U.S. M63 Mount for M2 Browning .50 Caliber Machine Gun

Manufactured by Colt Hartford Connecticut USA, Colt's production of M2 Heavy Barrels (M2HB) was 18,429 from 1940 to 1943, out of a total of 240,702 .50 BMG calibers.

Updated and reconditioned to new in April 1945 by Colt, see marking 4 45 (numbers struck for April 1945) on inside of breech housing cover ''Groupe Carcasse''.

In other contracts signed with Colt on V-J Day, August 15, 1945, the US government accepted reconditioned .50-calibre water-cooled and .50-calibre weapons that had already been assembled under earlier contracts.