First Strike Paintball HERO 68 4500 68ci HPA Nitrogen Tank Airsoft Goggles & Accessories The much larger valve chamber 920 01 1712 The much larger valve chamber combines with the high flow valve and new soft tip Cure5 bolt to deliver an HPR operating pressure of around 150psi and an LPR pressure of 85psi Metal Outer Barrel FRP Front TriRail Handguard Working Charging Handle Sig 556 Magazine Enhanced Hop Up Unit 6 Position Retractable SIG Stock The First Strike™ Hero Air Systems provides a perfect compact profile and adjustability that will let you stay in the game longer Our 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