CMMG FN P90 Style Flash Hider - M12x1 LH Thread, Steel Matte Finish

The CMMG FN P90 style flash hider is built for shooters who want authentic P90 aesthetics and flash signature reduction on their short-barreled rifle builds. Designed to thread directly onto barrels with M12x1 left-hand pitch—the standard for FN P90 platforms and PS90 SBR configurations—this muzzle device keeps your build period-correct while managing muzzle flash in low-light or indoor shooting situations. Built from steel with a matte finish, it's engineered to handle repeated use and matches the industrial look of the P90 platform.

If you're building a PS90 SBR or running a compatible short-barrel setup, threading compatibility matters. This flash hider's M12x1 LH specification means it's a direct fit for barrels cut to that standard—no adapters or workarounds. The matte steel construction resists corrosion and blends seamlessly with muzzle brakes and suppressors in the P90 ecosystem.

Flash hiders are most effective indoors or in low-light conditions where muzzle signature becomes visible. On a short-barreled platform like a PS90 SBR, they help reduce that signature without adding the length or regulatory complexity of a suppressor. This is a no-frills, proven design borrowed directly from the FN original.

Key Features

• FN P90 style design—authentic profile for PS90 SBR builds
• M12x1 left-hand thread pitch for direct barrel fit
• Steel construction with matte finish for durability and corrosion resistance
• Flash signature reduction in low-light shooting

Specifications

Frequently Asked Questions

Will this fit my PS90 SBR?

Yes, if your barrel is threaded M12x1 LH. This is the standard thread pitch for FN P90 and PS90 platforms. Confirm your barrel's thread spec before ordering to ensure compatibility.

What's the difference between a flash hider and a suppressor?

A flash hider reduces visible muzzle flash, particularly in low-light conditions or indoors. It does not reduce sound. A suppressor requires federal registration (Form 1 for a build, Form 4 for a commercial unit) and is regulated under the National Firearms Act. This flash hider requires no registration.

Is left-hand thread standard for P90 builds?

Yes. FN P90 and PS90 platforms use M12x1 left-hand threads as the factory standard. Confirm your barrel matches this specification; right-hand threaded barrels will not accommodate this device.

What material is this made from?

This flash hider is constructed from steel with a matte finish, offering durability and corrosion resistance for field and range use.