Missouri prohibits the knowing possession, sale, manufacture, transportation or repair of a machine gun, if the possession, sale, manufacture, transportation or repair is “in violation of federal law.”1

Federal law requires machine guns to be registered with the Bureau of Alcohol, Tobacco, Firearms & Explosives (ATF), and generally prohibits the transfer or possession of machine guns manufactured after May 19, 1986.2 In December 2018, ATF finalized a rule to include bump stocks within the definition of a machine gun subject to this federal law, meaning that bump stocks will be generally banned as of March 26, 2019.3

See our Machine Guns policy summary for a comprehensive discussion of this issue.

Notes
  1. Mo. Rev. Stat. § 571.020.1(6). Missouri defines a machine gun as any firearm that is capable of firing more than one shot automatically, without manual reloading, by a single function of the trigger. Mo. Rev. Stat. § 571.010(14). See also Mo. Rev. Stat. § 571.080 (making a violation of 18 U.S.C. § 922(b) a state crime). 18 U.S.C. § 922(b)(4) refers to the transfer of machine guns. ⤴︎
  2. 18 U.S.C. § 922(o); 26 U.S.C. § 5861(d). ⤴︎
  3. Bump-Stock-Type Devices, 83 Fed. Reg. 66,514 (Dec. 26, 2018) (to be codified at 27 C.F.R. pts. 447, 478, 479). ⤴︎