Here is the information on the B/M 1911
In 1936 - 1937 the Argentine firm of HAFDASA responded to a request from the Argentine
government to produce a pistol along the lines of the Colt 1911 style pistols then in
service. Following the work of the Spanish firms Star and Llama, HAFDASA produced a
pistol generally similar to the Colts with the exceptions of the removal of the grip safety,
modification of the manual safety to lock the hammer and not the sear, a backstrap integral
to the frame, and a pivoting trigger with a side mounted sear bar and disconnector. The
only parts that are interchangeable with the Colts (at the request of the Argentine
government) are the barrel and magazines. This pistol was accepted into Argentine service
in 1938 as the "Pistola Automatica Calibre .45 Ballester-Rigaud, Modelo DGME
1938.Between 1941 and 1942 HAFDASA changed the trademark of its .45 ACP pistols from
Ballester-Rigaud to Ballester-Molina, and the slides were marked accordingly. Additionally,
the use of plastic grips in addition to the wooden grips was introduced. Ballester-Molina
production continued until 1953, when HAFDASA went out of business.
Mechanism Type: Recoil Operated Semiautomatic
Caliber: .45 ACP
Weight: 2.43 lbs
Barrel Length: 5 in. (127mm)
Overall Length: 8.62"
Magazine Capacity: 7 rounds
Sights: Blade front, V notch rear drift adjustable for windage
Rifling: 4 grooves, .005 in (.127 mm) deep and .165 in (4.19 mm) wide, right twist, one
turn in 9.84" (249.9 mm)
Markings: Model, manufacture and patent markings on left side of slide, Argentine coat of
arms and owning service on right side of slide, property number on right side of frame, top
of slide, serial number on left rear gripstrap.
Hope this helps a little
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