This printable AR-15 magazine is an update of the Defense Distributed Cuomo magazine, providing several quality changes to the CAD files as well as extensive documentation for the fabrication of the magazine and spring. The magazine comes in the standard 30 round capacity. At time of release this design was considered the best printable AR-15 magazine available.

The project is titled “100% DIY” because it provides tools and documentation for winding your own springs. In keeping with tradition, the printable jig for winding springs is named the “Grewal Jig”.

NOTE: the creator of this file has declared that this design is to be considered obsolete and recommends the use of newer designs, such as the Waffle magazine.