M16 / M4 Enhanced Hop Up Unit end of year sale PolarStar was established in 2009

PolarStar was established in 2009 to fulfil the need for high quality

Weight: 440 g Shipping weight: 440 g

Ladder Panels offer very low-profile 1913 Picatinny rail coverage

Colt 2000 (9)

A new hop-up packing will allow more accurate hop-up adjustments

M16 / M4 Enhanced Hop Up Unit end of year sale PolarStar was established in 2009Details Weight: 9 g Shipping weight: 11 g Guarder Guarder is one of the most proven spare parts company in the airsoft community. Their famous, high quality products, such as springs, hop up rubbers, barrels, motors, gears and cylinder sets are the choice of many airsofters. Guarder wide product line contains even conversion setups for your plastic airsoft pistol to change it into a metal one.