FGC-9 MkII Rev5 is the most refined version of the "Fuck Gun Control" 9mm carbine, a hybrid 3D-printable firearm designed to be built without any regulated components. The Rev5 (Revision 5) specifically focuses on build reliability simpler assembly part longevity compared to the original MkII release.
The FGC-9 MkII Rev5 transcends its mechanical function. It is a political statement in plastic. Jstark1809 (who passed away in 2023) designed it as a response to the German Weapons Act’s prohibition on standard firearm components. The ethos was simple: If a government bans the sale of barrels, bolts, and triggers, we will make them from raw stock. FGC-9 MkII Rev5
It is not a single model, but an evolving platform. The "MkII" denotes the second major generation of the design, while "Rev5" refers to the specific iteration of that generation, representing bug fixes, structural improvements, and enhanced reliability. FGC-9 MkII Rev5 is the most refined version
The MkII Rev5 utilizes a standard AR-15 buffer tube, grip, and fire control group (FCG). However, the lower receiver and the upper receiver are largely printed. The upper receiver of the FGC-9 is unique because it uses a clamshell design printed in two halves and epoxied or bolted together. This creates a rigid structure that houses the barrel and bolt carrier group. It is a political statement in plastic
: Refined geometry to improve the reliability of feeding various 9mm cartridge types.