US12687353 - Firearm bolt assembly

The patent describes a firearm bolt assembly featuring a pivoting extractor and a pin that secures both the bolt and extractor openings. Additionally, it includes a retainer with a curved portion that is positioned inwardly and can be removed from the pin for maintenance or replacement.

Claim 1

1 . A bolt assembly that defines a longitudinal direction and a radial direction that is orthogonal to the longitudinal direction, the bolt assembly comprising: a bolt defining at least one bolt opening; an extractor that is configured to pivot relative to the bolt, the extractor defining at least one extractor opening; a pin positioned within the at least one bolt opening and the at least one extractor opening; and a retainer that defines a curved portion that extends at least partially around the pin, wherein the retainer is positioned inward relative to an exterior surface of the bolt assembly, wherein the retainer is removably coupled to the pin. a bolt defining at least one bolt opening; an extractor that is configured to pivot relative to the bolt, the extractor defining at least one extractor opening; a pin positioned within the at least one bolt opening and the at least one extractor opening; and a retainer that defines a curved portion that extends at least partially around the pin, wherein the retainer is positioned inward relative to an exterior surface of the bolt assembly, wherein the retainer is removably coupled to the pin.

Google Patents

https://patents.google.com/patent/US12687353

USPTO PDF

https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/12687353