Battle Blaster Semi Automatic 7.5mm Water Gel Ball Rifle (Model: M4 Contractor - Competition Red)

"MK VI. Great little cqb blaster. Out of the box is running about 260fps 20 rps with an 11.1v. Recomend a barrel hop up. Slightly over volumed, might need a 70% or 60% cylinder. If you plan on upgrading the gears to 13:1 etc., will need to radius the gear box. It's just a regular cast APS gear box. Love the pop out stock. If you decide to upgrade the spring, you will need to go with a hardend gell ball like Ausgel ultra elites. Good candidate for DSG or TSG as it has a shorter barrel. Will most likely have to switch from bearing to bushings. Recommend a good MOSFET. With a little modification, you can fit a Levi in it. Aster will work too. Definitely check out a teardown tutorial as these can be a little tricky with the ambidextrous fire select and bolt catch.