Description
CMMG P90 Style Flash Hider – M12x1 LH Thread (5.7x28mm)
The CMMG P90 Style Flash Hider (M12 x 1 LH) is the perfect muzzle device for FN PS90 owners and builders creating authentic short-barreled rifle (SBR) configurations. Designed specifically for the FN PS90 platform and compatible with CMMG’s popular 10.4″ PS90 SBR barrels, this flash hider features precise M12x1.0 left-hand threads that match factory FN specifications. Constructed from durable steel with a black corrosion-resistant finish, it effectively reduces muzzle flash while maintaining the iconic P90 aesthetic and functionality.
Ideal for 5.7x28mm rifles, this CMMG muzzle device helps keep SBR builds legally compliant while improving low-light performance and overall appearance. Whether you’re completing a PS90 SBR project or upgrading an existing carbine, this P90-style flash hider delivers reliable performance, easy installation, and factory-correct style. Backed by CMMG’s Lifetime Quality Guarantee, it’s a must-have accessory for PS90 enthusiasts seeking authentic looks and practical flash suppression in one high-quality package.
- Model: Flash Hider, P90 Style (often listed as CMMG 57DA5BE or similar)
- Caliber: 5.7x28mm (designed for FN PS90 / FNH P90 platform)
- Muzzle Device Type: Flash hider (reduces muzzle flash signature)
- Thread Pitch: M12 x 1.0 LH (left-hand threads – specific to FN PS90 / CMMG PS90 barrels)
- Material: Steel (black finish, durable matte coating)
- Compatibility: FN PS90 rifles (factory barrels), CMMG PS90 10.4″ SBR barrels, and compatible short-barrel PS90 builds
- Purpose: Ideal for PS90 SBR conversions (short-barreled rifle builds), maintains legal length requirements while preserving the iconic P90 look
- Finish: Black (corrosion-resistant)
- Installation: Direct thread onto M12x1 LH threaded muzzle


“See CMMG P90 Style Flash Hider M12x1 LH at Brownells”






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