# US 8,739,445 B2 · Caliber conversion for pistol

> Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt

- Number: US 8,739,445 B2
- Document ID: US8739445B2
- Status: Granted
- Kind: B2
- Application number: 13/342,970
- Filed: 2012-01-03
- Published: 2012-12-20
- Granted: 2014-06-03
- Earliest claimed: 2010-12-31
- Assignees: Technical Solutions, Inc.
- Applicants: Sean R. Burke; Eric G. Jeppesen
- Inventors: Sean R. Burke; Eric G. Jeppesen
- Web page: https://patentgrep.com/patent/US8739445B2

## CPC

- F41A 11/02: Modular concepts, e.g. weapon-family concepts
- F41A 15/14: the ejector being mounted on or within the bolt; {Extractors per se}
- F41A 17/64: Firing-pin safeties, i.e. means for preventing movement of slidably- mounted strikers (F41A17/02 - F41A17/40 take precedence)
- F41A: FUNCTIONAL FEATURES OR DETAILS COMMON TO BOTH SMALLARMS AND ORDNANCE, e.g. CANNONS; MOUNTINGS FOR SMALLARMS OR ORDNANCE

## Abstract

A robust and convenient caliber conversion kit is described, for example, for the higher-caliber GLOCK® semi-automatic pistol. The caliber conversion kit has an internalized spent round extractor for more reliability. In addition, the firing pin safety relies on a set of two-dimensional surfaces, rather than on a one-dimensional line or edge, for cooperation (interaction and support) with the firing pin and with a recess in the firing pin housing that receives the safety, resulting in more security. Also, the spent round ejector is snugly fastened around an outwardly-extending abutment of steel on the barrel, the abutment being within a recess also snugly fitting the perimeter of the front end of the ejector, resulting in a quieter ejector mechanism.

## Claims

### Claim 1

In a pistol caliber conversion kit comprising a replacement slide and barrel assembly with an ejector port, the improvement comprising a spent round extractor with a forward tip, the tip having an outside rounded curve adapted to be directed inwardly towards the center of, and backwardly from, the ejector port, the extractor also having an inside curve near said tip that is substantially radial and straight and meets the outside curve at a sharp line.