PolarStar - Fusion Engine Nozzle for M4 (Green: 313-363 FPS) kwa principal and directly mount to

principal and directly mount to the CMR with threaded fasteners making them easy to install and modify to customize your rifle for your shooting needs

The best part is that our system is extremely user friendly

Fixed front sight

Capacity: 8 rounds

The goggles come with an adjustable strap and have padding that measures 3/8" and a 7/8" cut out for glasses template

PolarStar - Fusion Engine Nozzle for M4 (Green: 313-363 FPS) kwa principal and directly mount toThis series of Fusion Engine air nozzles allows you shift the velocity range of your rifle up or down to best meet your requirements. Nozzles are easy to install and typically take less than 5 minutes to change out on most models from start to finish. Each nozzle is machined from aluminum and comes with both the internal and external o rings. The nozzles are color coded with a hard coat anodizing for easy identification. Results with a . 20g BB using