The CMMG 10.4" PS90 Barrel is the purpose-built upgrade for converting your FN PS90 into a more compact, correct-length SBR configuration while preserving the fast, flat-shooting advantages of 5.7x28mm.
This exact barrel, model
57DF1C7, is chambered in 5.7x28mm and features a 10.4 inch length, 1:9 twist, and M12x1LH muzzle threads. CMMG lists it as the ideal option for PS90 SBR conversions and notes that compatible accessories such as a P90-style flash hider and M12x1LH to 1/2x28 thread adapter are available separately.
Constructed from
4140CM steel with an SBN finish/treatment, this barrel is built for hard use and reliable performance. The compact 10.4 inch format brings the PS90 platform closer to its intended footprint while maintaining the unique handling characteristics that make it so appealing.
For builders looking to complete a proper PS90 short-barreled rifle setup with quality American-made parts, this CMMG barrel is a premium solution backed by CMMG’s
Lifetime Quality Guarantee.
Shop more FN America PS90 accessories at Huckleberry Arms:
Compliance Notice: Installation of this 10.4 inch barrel on an FN PS90 may create a Short-Barreled Rifle (SBR) regulated under the National Firearms Act (NFA). All applicable federal, state, and local laws apply. Ensure approved registration and compliance prior to installation.