KA Tech MAC Polarstar Black Retro HPA M4 Barrel Length & Type:Speed Cannon 8" We also inspect the hop-up

We also inspect the hop-up setup and will replace the bucking and nub if needed to keep accuracy and grouping on point

Turbine PRO Regulator (output 350psi-650psi) for paintball and airsoft

Magazine Compatibility: Tokyo Marui

Hex cutouts on the rear of the slide provides ample grip when racking as well as providing a unqiue look

It gives you the widest range of velocity adjustment by simply swapping nozzles to shift your rifle's velocity range up or down in large increments

KA Tech MAC Polarstar Black Retro HPA M4 Barrel Length & Type:Speed Cannon 8" We also inspect the hop-upEvery KA Tech rifle is built on internals and tuning weve spent the last four years perfecting. Our performance packages are the industry standard everyone else is chasing if you want something thats going to outperform everything else on the field, this is it. The KA Tech MAC Retro is built around a custom Retro Arms receiver for an aggressive, old school feel with none of the performance trade offs. Designed with a full CNC aluminum and carbon fiber