Description 0 Reviews Description PolarStar F1-CL Conversion Kit for S&T TAR-21 Made in the USA Air Efficiency: 1000+ shots from 13/3000 @ 1.5J w/ .28g ROF: 30rps Velocity: 500pfs w/ .20g @ 130psi Designed for the S&T TAR-21 View AllClose 0 Reviews View AllClose