KeyMo / KeyMicro Muzzle Device for P90 & PS90
Mount your Dead Air suppressor the right way. This KeyMo / KeyMicro-compatible muzzle device is engineered for the FN P90, PS90 SBR, and XF50 platforms. It simplifies suppressor attachment, improves reliability, and preserves the P90’s unique floating barrel system—all while delivering a refined, tactical aesthetic.
Previously, installing a KeyMo or KeyMicro accessory required a 1/2" x 28 thread adapter followed by a separate QD muzzle device. This stacked configuration added unnecessary length and complexity. With this all-in-one solution, you can now install a single component between your 10.4" barrel and suppressor—no extra adapter needed.
Key Features:
- QD Ready: Compatible with Dead Air KeyMo and KeyMicro suppressors and muzzle devices
- Streamlined Installation: Replaces the need for a separate thread adapter
- Floating Barrel-Compatible: Maintains proper delayed-blowback operation of the PS90
- Reduced Tolerance Stacking: Enhances alignment and long-term reliability
- Refined Aesthetic: Tactical look that complements your P90, PS90, or XF50 build
A Note from the Armory of Kings Team:
The FN P90’s barrel threads into the muzzle device, and unlike traditional rifles, the design relies on a floating barrel system for proper cycling. In the past, mounting a KeyMo-compatible suppressor meant stacking a thread adapter and QD muzzle device in sequence.
This purpose-built muzzle device replaces that multi-part setup, offering a cleaner, more functional approach to suppressor mounting. It’s the ideal solution for serious PS90 and XF50 SBR builders.
Important Notes:
- Requires installation of the PS90 10.4" SBR barrel
- All NFA rules apply
