PolarStar JACK Nozzle – TM5K / KA FAL / A&K M240 – #6
The PolarStar JACK Nozzle #6 covers three distinct platforms that share a compatible nozzle specification in the JACK HPA engine range: Tokyo Marui 5K (TM5K), King Arms FAL, and A&K M240 LMG. The JACK engine replaces the AEG gearbox entirely, and the #6 nozzle provides the correct interface geometry for reliable BB feeding and shot consistency in all three of these different body types — TM5K compact SMG, FAL battle rifle, and M240 LMG.
PolarStar is one of the leading HPA engine manufacturers in airsoft. For operators of any of these three platforms building a JACK HPA conversion, Nozzle #6 is the confirmed correct nozzle for TM5K, KA FAL, and A&K M240 bodies.
- PolarStar JACK Nozzle — #6
- Compatible with TM5K, King Arms FAL, and A&K M240
- Platform-specific nozzle for JACK HPA engine installations
- Made by PolarStar Airsoft — leading HPA engine manufacturer



