Big Bore LLC

Big Bore LLC is a specialized services company based in Henry, Tennessee, focused on preserving historic weapons systems while supporting modern defense needs. Its work serves government agencies and other qualified entities, with capabilities spanning crew-served weapons, artillery, armored vehicles, and ordnance. The company supports the procurement, sustainment, and replacement of legacy U.S. and foreign systems, sourcing rare new-old-stock parts and reverse-engineering components that are no longer produced. It also develops and manufactures components for contemporary weapons platforms.

Big Bore’s services include weapons familiarization courses, technical consultation, reverse engineering, modern weapons systems development and testing, and parts procurement, refurbishment, and manufacturing. Its experience covers systems from the 18th century through modern platforms, enabling projects ranging from custom, one-off builds to long-term IDIQ contracts. The company states that it operates a certified quality management system and holds ISO 9001:2015 certification, FFL Type 10 and FEL Type 20 licenses, DDTC/ITAR registration, and CMMC Level 2 compliance. Its stated mission is to preserve the past while helping educate and support the future.