A v3 gearbox in good working condition however the selector plate is a third party one and is very stiff so it either needs sanding or swapping out for a different one if you have one laying around. I was going to 3D print one but I've just lost interest in the project I was saving it for. Does not come with a motor or motor cage sadly as I used it as a donor for a different project however it worked fine when last used. 

I can't guarantee the brand but if I had to guess based on my past purchases its either JG/Golden Eagle, AY or PPS so nothing too fancy. Fits in my Golden Eagle PP-19 and my old CYMA cm.040 without any hassle. 


Might have had the spring swapped out for either an m95 or an M105 otherwise all other internals are stock.