Fusion Engine HPA Drop-In Kit V2 Gen 3 M4 / M16 ghillie/leafsuit Reticle illumination is provided via

Reticle illumination is provided via twelve levels of brightness

It makes them a prime choice for situations where eye protection is as crucial as being inconspicuous in the crowd

Dimension: 60x29 mm Thread: 11mm CCW Weight: 39 g Shipping weight: 70 g A battery (NiMh) is included

The Enhanced Rubber Butt-Pad can also be installed on Commercial-Spec MOE/CTR stocks

Fusion Engine HPA Drop-In Kit V2 Gen 3 M4 / M16 ghillie/leafsuit Reticle illumination is provided viaDescription The Fusion Engine from Polarstar is today one of the most proven HPA design for airsoft. It was originally released in 2011 and its received reward for Best HPA Engine in 8th Airsoft Players Choice Awards by Popular Airsoft. The third generation of this system continues this tradition and provides the user with one of the best drop in kits on the market. This complete drop in system replaces the whole AEG gearbox with high quality, CNC