Unitary barrel, chamber and action for a firearm

摘要

A unitary barrel, chamber and bolt region for a firearm is manufactured from a single piece of metal stock so as to precisely and consistently meet headspace requirements. A single piece of metal stock having a bore centerline is successively reamed based on a common datum to achieve precise headspace compliance. The unitary assembly is then profiled, again based on measurements from the datum, to provide a unitary barrel, chamber and bolt region without any form of juncture, headspace or harmonic limitations.

主权项

1. A unitary firearm assembly, comprising:
a piece of metal stock having a first hole of a first diameter, wherein the first hole includes a center axis; a datum perpendicular to the center axis; a second hole concentrically oriented about the central axis having a second diameter and a second hole depth measured from the datum and wherein the second diameter is larger than the first diameter; a third hole concentrically oriented about the central axis having a third diameter wherein the third diameter is greater than the first diameter and less than the second diameter, the third hole having a third hole depth measured from the datum wherein a difference between the third hole depth and the second hole depth forms a chamber equal to a predefined headspace.