Firearm frame including a firearm barrel and trigger mount contr

Details Firearm frame including a firearm barrel and trigger mount contr Firearm frame including a firearm barrel and trigger mount contr

1996-02-12

1998-04-21

Eldred, J. Woodrow

Ordnance

Automatic

Blow back breech block

89177, 42 16, 42 18, 42 22, F41A 500

Patent

active

057419965

ABSTRACT:
A firearm frame constructed of plastic material having slide rail guidance members in the forward, central and rear portions of the frame. The frame is useful with a barrel unit which is cammed back and down by slide reciprocation and by a cam block which with barrel movement being arrested by the walls of a frame cavity. Forces and energy created in arresting such back and down movement of the barrel and block is transferred to the frame by the block hitting the frame cavity. A slide stop pin passing through openings in the frame and cam block also assist in transferring energy to the frame. Forces causing the slide to move upward during the arresting of barrel and block is prevented buy the rail guidance members. The trigger rotates about a trigger trunnion located in such frame cavity below the cam block.

REFERENCES:
patent: 4539889 (1985-09-01), Glock
patent: 4593601 (1986-06-01), Smith
patent: 4825744 (1989-05-01), Glock
patent: 4915011 (1990-04-01), Smith
patent: 5309815 (1994-05-01), Moller et al.
patent: 5581046 (1996-12-01), Weldle et al.

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