Deterrence Dispensed is an online group that promotes and distributes open-source 3D printed firearms, gun parts, and handloaded cartridges. The group strongly supports freedom of speech applied to computer code and blueprints as well as the copyleft movement. The group is best known for developing and releasing the FGC-9, a practical 3D-printed carbine requiring no regulated parts. Owing to the group's anonymous and decentralized nature, no specific legal challenges has been launched against DetDisp as of August 2020, despite being recognized as a threat by law enforcement agencies.