This is a calico Jack. With a completely rebuilt inside. Matrix Calico Jack $225 Perun hybrid mosfet $70 Maxx speed trigger $30 Shs 12:1 gears $25 Full steel tooth piston $10 M115 spring $10 Double o ring piston head Silver air cylinder Shs high torque motor $40 Stock hop up Mad bull 6.03 tight bore barrel $40 Prometheus bucking with hard nub $10 Cyma platinum stock $30 Different grip not sure the brand Spent around $450+on it and spent hours building, shimming and tuning it. Super snappy, really consistent and accurate. The one side is missing the selector switch and when it it turned to full auto it dose not fire. It is probably an easy fix but I do not have time to fix it. It is super snappy on semi and the trigger response is really good so you really do not need full auto. Can send shooting video upon request. Willing to take reasonable offers. Message me with any questions.