For all you airsofters out there who really want to take maintenance, tweaking and tuning, and most of al: building of your replica to a next level, Systema Engineering might have announced something for you today.

Enter the Super Challenge Kit: all parts, gears, springs and connectors, you get to put together yourself. The philisophy being one every engineer can completely relate to: if you want to be able to maintain it propperly, you are the one who has to put it together from the first to the last  screw.