The Chameleon as a kit that allowed owners of the PMI Trracer (and other similar pump markers) to convert their setup to semi-auto. I believe the only missing part of this particular kit is a sticker on the side that would label it as the Chameleon. A three way mechanism is mounted inside the box, along with a ram that pumps the marker. The three way is actuated by a rod that is installed into a trigger shoe, and fed by an LPR that is added via an ASA extension.
While this design does technically work, and does indeed make the marker semi-auto, the clunkiness of the design may often make a player's effective firing rate lower. The trigger with the rod feels especially poor, and you realistically have to reach through and press the rod as well, since it has so little leverage over the three way it is trying to actuate.
