Products tagged with Internal

Polarstar Jack V2 Conversion Kit
$340.00
he Polarstar JACK V2 M4 Engine - HPA Standard FCU Conversion Kit. This is the full sized FCU version for easy programming. Fits in most M4 and M16 airsoft guns for a full air line HPA engine conversion. Contains everything you need internally. Works d
Prometheus Non-linear Spring MS135
$15.00
Upgrades the FPS of your AEG from approximately 420 FPS to 440 FPS
Polarstar Fire Control Unit Fusion & F2 Revision 3
$68.00
PolarStar Fire Control Unit (FCU) - FE - Jack - F1 - Rev.3/3 Blue FCU

Key features of the 2017 R3 FCU

More compact size
More Energy Efficient
Features same high efficiency voltage regulators and integrated box magazine controller as
Page 1 of 3
Powered by Lightspeed