Achieve maximum compression and maximize your rifles full potential with this impact resistant cylinder head upgrade from Maxx Airsoft. This high end upgrade is crafted from a single piece CNC aluminum build with a smooth finish for long lasting durability. Unlike most stock AEG cylinder heads, this one features two high quality O-rings for a tight seal and successfully prevent air from leaking from the space between the cylinder head and cylinder itself. Being able to trap the air within the gearbox produces a tighter compression which results in a higher FPS and increased shooting performance. A dense rubber pad on the rear of the cylinder acts as a cushion to absorb impact from the piston, greatly reducing overall vibration during gameplay. The universal design of this high-flow impact resistant cylinder head allows it to be used as an upgrade in most AEGs running on a Version 2 gearbox. Air compression is what gives your AEG its power and the edge over other players, and now achieving higher compression has never been easier thanks to the innovative minds at Maxx Airsoft!