Ordnance – Automatic – Blow back breech block
Patent
1993-01-25
1994-06-14
Bentley, Stephen C.
Ordnance
Automatic
Blow back breech block
42 7, 89146, F41A 366
Patent
active
053200233
ABSTRACT:
A semi-automatic piston construction of blow-back type configuration to effect directing of projectiles from within includes construction of the pistol to employ application of the breech bolt within the upper receiver, with a return spring arrangement mounted to the breech bolt in an axially spaced and parallel relationship relative to the firing pin. The upper receiver includes a generally U-shaped trough projecting from the receiver into the handle portion of the lower receiver to accommodate the main spring and magazine holder structure.
REFERENCES:
patent: 2655839 (1953-10-01), Ruger
patent: 3318192 (1967-05-01), Miller et al.
patent: 4358986 (1982-11-01), Giorgio
Bentley Stephen C.
Combs E. Michael
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