Polarstar - Jack V2 M16A4 1 x Custom Painted 7"

1 x Custom Painted 7" Hex Handguard

The CYMA M4 MK16 boasts a truly solid construction partnered with a massive amount of metal components across the blaster

This can be installed on the back end of your receiver

you won't regret adding this blaster to your collection

Velocity: 260+ Feet Per Second (FPS)

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.