Firearm with a readily interchangeable bolt face
OwnerWildey Mooreinventor
Life of this patent
Estimating the term…
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.
Claims5
An improved bolt face for a firearm of the type having a frame defining a longitudinally extending ejection chamber, a barrel having a bore adapted to receive a cartridge of a selected caliber disposed in the frame, a slide or bolt arranged to move longitudinally between a forward and a rearward position with respect to said frame and said barrel, said slide or bolt defining a breechblock portion having a longitudinal hole therethrough, a firing pin longitudinally slidable in said longitudinal hole to enable it to strike the cartridge when the slide or bolt is in the forward position, an extractor adapted to match the selected caliber of the cartridge, and an ejector fixed to the frame and extending into said ejection chamber, characterized in that:
- said breechblock portion defines a semi-circular groove coaxial with said longitudinal hole,
- said firearm having a bolt face insert comprising a body defining a semi-circular rim adapted to removably fit into said semi-circular groove,
- said body having a breechblock side facing the frame breechblock portion and having an oppositely disposed bolt face side facing the extraction chamber when the insert rim is inserted into the breechblock groove, and
- said insert bolt face side adapted to match the selected caliber of said cartridge
A bolt face insert for providing a readily changeable bolt face for a bolt or a slide of a firearm, said bolt face insert comprising a body having a longitudinal axis and defining a semi-circular rim disposed about said axis, said body defining a hole therethrough along said axis, said bolt face insert defining a longitudinal ejector slot through said body extending parallel to said axis, and said bolt face insert further defining an extractor groove through said semi-circular rim extending perpendicular to said axis.
Dependencies are inferred from the claim text.