Pat Harrigan is an owner of ZRODelta, UnBrandedAR, US Optics, and several other firearms industry companies. He is a 2009 West Point graduate with a degree in Nuclear Engineering, and culminated his time in service as a Detachment Commander in the Special Forces (Green Berets), serving over 18 months in combat. Pat is an accomplished entrepreneur, inventor, and writer, and is an expert in firearms design, manufacturing, and global industry regulatory matters.

In early 2015 while still on active duty, Pat and his wife Rocky started a firearm parts supply company from their double-wide trailer home. Pat and his partners now operate a 120,000 square foot facility complex situated on 76 acres in North Carolina. It is the only facility in the United States where firearms parts, complete firearms, mounting solutions, optics, and ammunition are all manufactured under one roof. He and his wife Rocky attend Church regularly and have two beautiful daughters.