The TRK's are comprised of a premium knit poly blend for supreme comfort and flexibility

Magazine Capacity:550

and full length 4

Run time Green Beam ON: 1 minute + 29 minutes

4x Rail Ladder Covers included

PolarStar Fusion Engine Low-Flow Poppet (Red) CCW The TRK's are comprised ofThe Poppet Valve is the part which controls air flow through the Fusion Engine. The valve is available in different levels of restriction to limit or maximum air flow down the barrel which promotes either higher air efficiency or higher velocity, depending on which valve you go with. The Red Low Flow Poppet valve is the Mid level restriction valve for a good blend of power and efficiency. How does it work? The standard Black poppet valve for the