We do not recommend installing this separate high-power valve because the existing darts can't handle so much power. Accuracy suffers too much. At some point, we may introduce high-power darts that can handle it. For now, do not install the high-power valve. Consider it "experimental only" for now!

Specifications:

• Muzzle Velocity (Experimental High Power Valve): 398 FPS
• Shot Energy (Experimental High Power Valve): 7.6 ft-lb / 10.31 J

Standard valve performance by Comparison: 

• Muzzle Velocity (Standard Valve): 308 FPS
• Shot Energy (Standard Valve): 4.55 ft-lbs / 6.17 J

Note:

• All SixNeedlers ordered before 11/7 @ 6:00pm EST already come with this part as a separate accessory in the retail box.
• Sixneedlers ordered after 11/7 @ 6:00pm EST do not automatically come with this part.