Polarstar - Jack V2 M16A4 1 x Custom Painted 7"

1 x Custom Painted 7" Hex Handguard

The flash hider has a 14mm thread to directly thread onto your outer barrel fitment and looks incredible on all builds

Velocity: 260+ Feet Per Second (FPS)

This can be installed on the back end of your receiver

an LCD screen display and USB charging

Polarstar - Jack V2 M16A4 1 x Custom Painted 7"Similar to its sister product, the F1, it replaces the original gearbox components with a programmable pneumatic system allowing for higher performance and greater reliability over a gear driven system. Although economically priced, JACK still retains the same performance and quality you have come to expect from PolarStar products. These engines have mag terminal wires inside package.