Initially Posted By Tony_k: Not business guns, due to the fact Colt experienced a plan of not selling MGs to non-public functions. By law they may not, simply because they by no means paid any federal excise tax on their MGs. That saved them around ten% for each gun. (FET https://colt-m16a1-for-sale36778.mysticwiki.com/1080969/the_fact_about_colt_combat_unit_rail_gun_45_that_no_one_is_suggesting