Patent ID: 11892257
Assignee: ABRAMS AIRBORNE MANUFACTURING, INC.
Field: Other special machines (Mechanical engineering)
Classification: CPC F | IPC F

Claim 0:
1. A firearm comprising:
a receiver extending in a longitudinal direction from a forward end toward a rearward end, said receiver including a receiver wall at least partially defining a receiver chamber, said receiver wall including a side wall portion with an elongated slot oriented longitudinally therealong and extending therethrough such that said elongated slot is in communication with said receiver chamber;
a bolt assembly at least partially disposed within said receiver chamber and supported for reciprocal displacement in said longitudinal direction between said forward end and said rearward end of said receiver, said bolt assembly including a bolt carrier with a carrier passage extending therethrough in a lateral direction transverse to said longitudinal direction; and,
a retaining device secured on said receiver wall, said retaining device including:
a mounting plate disposed along said side wall portion of said receiver wall; and,
a retention pin oriented in said lateral direction and supported on said mounting plate for displacement in said lateral direction between:
a first pin position in which said retention pin extends through said elongated slot into engagement with said carrier passage of said bolt carrier of said bolt assembly such that said bolt assembly is retained in a substantially-fixed longitudinal position within said receiver chamber; and,
a second pin position in which said retention pin is retracted from engagement with said carrier passage of said bolt carrier of said bolt assembly such that said bolt assembly is reciprocally displaceable within said receiver chamber in said longitudinal direction.