Initially Posted By tony_k: Not business guns, mainly because Colt had a plan of not advertising MGs to non-public events. By regulation they might not, given that they in no way paid any federal excise tax on their own MGs. That saved them about ten% for each gun. (FET is https://cesarsajfn.blogzag.com/75353269/the-basic-principles-of-colt-combat-unit-rail-gun-45