In this episode of "What The Tech" by Wolverine Airsoft, they show you how to install the Heretic Labs Tank Grip... "Take the weight off your shoulders with the Heretic Labs Tank Grip. Attach an HPA tank directly into your Heretic or MTW-Spec HPA replica and you’re ready to go. Powered by the lightning-fast Wolverine Airsoft Storm Category 5 Regulator, this grip is the ultimate upgrade to dominate the speedsoft arena.

Features:

• Built-in STORM Category 5 Regulator with forward-facing gauge (60-180 PSI Range) 
  Convenient toolless battery access.
• Rugged design with quality molded glass-filled nylon.
• Accepts standard HPA tanksFits MTW-Spec HPA replicas
• Integrated tournament lock"