Ninja OFV Fill Valve HK Skull Mask The Spent Series accessories are

The Spent Series accessories are non-firing replicas

The CTRL2 seamlessly integrates with all the original CTRL topshells and NTR speed feeds as well as other accessories like the Virtue N-Charge Lithium Ion Rechargeable Battery Pack

keeping you face cool

Enhanced Grip – Machined grooves provide superior Positive-Grip and control

Ninja OFV Fill Valve HK Skull Mask The Spent Series accessories areNinja OFV Fill Valve MADE IN THE USA!!!! This fill valve features a O ring style seal which removes the need for any sort of thread sealing tape. The fill valve also utilizes a "shoulder" to prevent over tightening and ensure proper pocket depth when installed in the regulator body. This fill valve can be found on all new Ninja regulators marked OFV above the fill port, it is not compatible with NPT threaded systems.