80 Percent Arms Inc.

Blackhawk Manufacturing Group Inc.

Tilden Alan Smith

A machining tool assembly is provided for machining a blank to form a firearm lower receiver. The assembly includes a pair of side plates positionable on opposed sides of the blank to capture the blank therebetween. A template plate having a template aperture is adapted to be removeably attachable to the side plates. The template aperture is aligned with a top surface of the blank and is adapted for machining a cavity within the blank having a peripheral contour complimentary to a peripheral contour of the template aperture. A centering mechanism is adapted to be removeably attachable to the template plate, with the centering mechanism including an opening aligned with a corresponding void formed on the blank to align the blank with the template plate.

Jig for firearm lower receiver manufacture

A jig for machining portions a firearm lower receiver blank. The jig can include a side plate assembled with a top plate. The top plate can include an access aperture for machining the fire control group aperture within the blank. The side plate can include drill apertures for drilling out trigger, hammer, and selector holes. The jig can include an adjustable alignment mechanism for aligning a top surface of the blank with the top plate. The jig can include a hand drill stabilizer for attachment with the side plates.

Growing community of inventors

Westminster, CA, United States of America

Tilden Alan Smith