Rogueworx | Apollo V4 NPAS for KC-02 GBBR

The KC-02 has a bit of a cult following, and if you own one, you already know how particular it can be. The Rogueworx Apollo V4 is the NPAS we stock for it, and honestly, it's the one most KC02 owners end up going with once they've done their research.

It's machined from 7075 aluminium by Rogueworx, so the build quality is exactly what you'd expect from them. But what makes it stand out is the kit it comes with. You get two rocket valve springs, a standard one at 0.055 N/mm and a softer one at 0.0294 N/mm — plus two spare O-rings, so you've got real options when it comes to dialing in your FPS. It's not just a valve swap, it's a proper tuning setup.

If you want more detail on installation or setup, Rogueworx have a full guide on their site worth bookmarking.

What's in the box:

• 1× Rogueworx Apollo V4 NPAS
• 2× spare O-rings
• 2× rocket valve springs (standard + softer)

Compatible with: KC-02 GBBR

More info: Rogueworx Apollo guide