First Strike Paintball HERO 88ci 4500psi HPA Nitrogen Tank Airsoft Gun Upgrades O-ring fill valve (OFV) -

O-ring fill valve (OFV) - fill nipple seals using an o-ring instead of the traditional pipe tape

and warranty card

Converts from pistol to rifle easily

Kaos-D and KP II is now available as an upgrade accessory

Each finger is mounted on a spring

First Strike Paintball HERO 88ci 4500psi HPA Nitrogen Tank Airsoft Gun Upgrades O-ring fill valve (OFV) -The First Strike Hero Air Systems provides a perfect compact profile and adjustability that will let you stay in the game longer. First Strike's new lightweight tanks are 30% lighter than the standard version of the same size and have the ability to adjust the position of the fill nipple and gauge with groundbreaking magnet technology. Measuring just at . 75 from tank to ASA, the FS hero regulator provide a consistent, re buildable, and reliable air