Firearm with a readily interchangeable bolt face

Details Firearm with a readily interchangeable bolt face Firearm with a readily interchangeable bolt face

2003-09-26

2008-05-27

Johnson, Stephen M (Department: 3641)

Firearms

Breech loading

Sliding breechblock

Reexamination Certificate

active

07377066

ABSTRACT:
A readily replaceable bolt face for a firearm (10) with a movable slide (12) that strips a round from a magazine, extracts the spent round from the firing chamber and then ejects the round from the firearm by means of an ejector. A bolt face insert (32) has an external configuration that is common to a range of calibers, but with a bolt face side (66) designed to fit the rim of a specific caliber or calibers having the same rim dimension. The insert may be replaced to fit a different caliber without replacing the slide. The bolt face insert is provided with a slot (62) for the ejector and a groove (60) to accept an extractor for the specified caliber.

REFERENCES:
patent: 3728939 (1973-04-01), Wilhelm
patent: 3996684 (1976-12-01), Bauman et al.
patent: 4615132 (1986-10-01), Smith
patent: 4617749 (1986-10-01), Jurek
patent: 4920677 (1990-05-01), Schuerman
patent: 4942802 (1990-07-01), Stoner
patent: 6732465 (2004-05-01), Strayer

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