Dual purpose semi-automatic convertible rifle

Details Dual purpose semi-automatic convertible rifle Dual purpose semi-automatic convertible rifle

1976-05-12

1977-11-01

Bentley, Stephen C.

Ordnance

Automatic

Convertible gun operation

42 16, 42 50, 89 1K, 89139, 89148, 89184, 89199, F41C 2110

Patent

active

040560384

ABSTRACT:
A semi-automatic sporting rifle, firing high powered center fire cartridges, is easily and quickly convertible to a 22 rimfire rifle without loss of feel or balance. The dual purpose rifle features a short stroke, gas operating system which is rendered inactive when the rifle is converted to 22 rimfire action. In the conversion, a locking bolt assembly and magazine for high powered ammunition are replaced by a non-locking bolt and a combined cartridge adapter and magazine holder for 22 calibre rimfire ammunition. The principal components of the firearm, including barrel, receiver, firing mechanism, action spring, magazine latch, bolt connecting link, charging handle, sights, stock and forearm, are common to both forms of the rifle. The conversion may be accomplished by using only a pointed object, such as a bullet point or ball point pen.

REFERENCES:
patent: 2159126 (1939-05-01), Birkigt
patent: 2577026 (1951-12-01), Maillard

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