Fn Herstal S.a.

Olivier Holger Costet

Luke Randel Howlett

Jonathan H Derrick

John Michael Beville

Douglas Alan Shaffer

Charles N Davenport

Charles Neil Davenport, Jr

A firing mechanism provides a secondary interface between a hammer and a sear of a firearm that will automatically be engaged in case a primary interface between the hammer and the sear fails. In various embodiments, an actuator is employed to facilitate engagement of the primary and secondary interfaces.

Firing mechanism with secondary interface for a firearm

Pistol

A firearm having a top surface to which an optical sight is to be attached having a first portion and an adjacent second portion stepped down from the first portion. An adaptor plate is received in the second portion, its shape corresponding to the second portion to properly orient the adaptor plate. The bottom of the second portion and the underside of the adaptor plate having features to receive a spring. An optical sight is attached with at least one fastener to the first portion and directly to the slide of the pistol with a part of the optical sight cantilevered over the second portion and on the adaptor plate. The upper surface of the adaptor plate has a topography that corresponds to a complimentary topography on the underside of that portion of the optical sight.

Firearm with interchangeable sighting device system

Semi-automatic pistol

Rear sight protector for pistol

Growing community of inventors

Columbia, SC, United States of America

Olivier Holger Costet