Russian Izhmash (Izzy) AK74 30 Round Chocolate Magazine
Chocolate mags are probably from a bad mix of the die on plum. They are likely thought of as plum, but are very brown. Like the plum magazines, it is difficult to capture the true color in a photograph, but in person, the color is vibrant and obvious.
These will have surface scratches from storage but are otherwise very good looking magazines.
The first image compares a plum to a brown.