Patent ID: 9009986
Filing Date: 2015-04-21
Classification: B23P,B23Q,F41A,G01B,Y10T

Abstract:
1. A machining tool assembly comprising a plurality of separate components for manufacturing a firearm lower receiver, the firearm lower receiver defining a top plane that is aligned with a top surface of firearm lower receiver but below a buffer tube receiver extension of the firearm lower receiver, the assembly comprising: a first side jig and a second side jig configured to be disposed on opposite sides of the firearm lower receiver and configured to removably attach to one another securing the firearm lower receiver therebetween; a drill block jig removably attachable to the first and second side jigs disposed above the top surface of the firearm lower receiver, wherein the drill block jig comprises a plurality of through holes defining axes oriented perpendicular to the top plane of the firearm lower receiver when the drill block jig is attached to the firearm lower receiver; a template spacer jig removably attachable to the first and second side jigs disposed above the top surface of the firearm lower receiver, wherein the template spacer jig comprises a spacer aperture disposed through a template spacer thickness, wherein the spacer aperture is oriented perpendicularly through the top plane of the firearm lower receiver when the template spacer jig is attached to the firearm lower receiver; a first pocket template removably attachable and disposed onto the template spacer jig, wherein the first pocket template comprises a first aperture disposed through a first pocket template thickness, wherein the first aperture is oriented perpendicularly through the top plane of the firearm lower receiver when the first pocket template is attached to the template spacer jig; a second pocket template removably attachable and disposed onto the template spacer jig, wherein the second pocket template comprises a second aperture disposed through a second pocket template thickness, wherein the second aperture is oriented perpendicularly through the top plane of the firearm lower receiver when the second pocket template is attached to the template spacer jig; and a router support plate disposed onto either the first or second pocket template and attachable to the first and second side jigs through the first or second pocket templates and the template spacer jig, wherein the router support plate comprises a router aperture disposed through a router support plate thickness, wherein the router aperture is oriented perpendicularly through the top plane of the firearm lower receiver when it is attached onto the first or second pocket templates, and wherein a top surface of the router support plate is disposed equal to or above the buffer tube receiver extension.