CMMG 10.4" Barrel for PS90 – Compact Performance for Your PS90 SBR Conversion
Upgrade Your FN PS90 with a Precision-Engineered Short Barrel
Transform your factory FN PS90 into a high-performance short-barreled rifle (SBR) with the CMMG 10.4" Barrel. Crafted from 4140 chrome-moly steel and finished with a salt bath nitride coating, this barrel delivers the durability, accuracy, and function required for PS90 SBR conversions. It’s the ideal choice for builders seeking reliability in a compact form.
Engineered for PS90 SBR Configurations
At 10.4" in length with a 1:9 twist rate, this barrel enhances maneuverability while maintaining precision with 5.7x28mm ammunition. Designed specifically for the PS90 platform, it pairs seamlessly with platform-specific muzzle devices and supports the delayed blowback system properly when assembled.
Key Features:
- Length: 10.4" – Ideal for registered short-barreled PS90 builds
- Twist Rate: 1:9 – Optimized for the 5.7x28mm cartridge
- Barrel Contour: MT – Balanced for better handling
- Material: 4140CM steel with Salt Bath Nitride (SBN) finish
- Thread Pitch: 12mm x 1.0 LH – Compatible with original P90/PS90 muzzle devices
- Muzzle Device Requirement: A muzzle device is required for barrel retention and proper function. Optional muzzle devices are available in the dropdown menu above.
Why Choose the CMMG 10.4" PS90 Barrel?
- Built for SBR Compliance: The essential component for an ATF Form 1 PS90 SBR conversion
- Threaded for Compatibility: Accepts platform-specific muzzle devices, suppressors, and flash hiders
- Required for Function: PS90 system depends on a muzzle device for proper barrel retention and operation
- Premium Construction: CMMG quality you can trust, built to withstand high round counts
- Customize Your Build: Choose an optional muzzle device during checkout or use your own
- Need a Muzzle Device? Browse our selection of PS90-compatible muzzle devices here.
Installation Note
The FN PS90 uses a muzzle device for barrel retention. Do not install this barrel without a properly secured muzzle device. Installation by a qualified gunsmith is recommended.
Need help removing your factory barrel shroud?
Check out our PS90 Barrel Shroud Removal Jig System – For 16" Barrel Models for a safe and reliable way to extract your original 16" barrel without damaging your firearm.
NFA Compliance Reminder
Do not install this barrel on a PS90 unless you have an approved Form 1 and tax stamp from the ATF. Possession of an unregistered short-barreled rifle is a violation of federal law. All NFA rules apply.
Order the CMMG 10.4" Barrel for PS90 Today
Build your short-barreled PS90 with confidence using the CMMG 10.4" barrel. Select an optional muzzle device from the menu above and begin your SBR conversion the right way.
Disclaimer:
The FN PS90 and P90 platforms require a properly installed muzzle device for barrel retention and safe operation. All NFA regulations apply.
