The PolarStar #1 JACK Nozzle is an HPA nozzle made from a high-quality Delrin material for the PolarStar JACK so that you can retrofit your Jack into an Echo1 PKM, Elite Force H&K 417, and most M4-based platforms such as the G&G M4 and VFC M4. This nozzle is also available in the event you need to replace your damaged nozzle.
Rifle Compatibility:
- Elite Force H&K 417
- ECHO1 PKM
- G&G M4 (Combat Machine Series)
- G&G M4 (GC Series)
- VFC M4 (ES Series)
System to be used on: PolarStar JACK