3D-printed firearm
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A 3D-printed firearm is a firearm that is partially or primarily produced with a 3D printer. While plastic printed firearms are associated with improvised firearms, or the politics of gun control, digitally-produced metal firearms are more associated with commercial manufacturing or experiments in traditional firearms design. Although it is possible to create fully-printed plastic firearms and silencers, these tend to have short operating lives. 3D-printed gun culture is built around the printing of open-source firearm frames and receivers, the use of standard, metal commercial components (like an action and barrel), and other parts that can be made or purchased in a parts kit. While 3D-printed parts are made in the development and production of conventional firearms, they are more commonly associated with homemade firearms and the 3D2A movement in American gun politics. 3D-printed parts complicate the debates regarding high-capacity magazine and assault weapon bans, as well as federal regulations, such as the ATF's pistol brace rule.