CMMG Barrel Sub-Assembly 5.7x28mm 10.40" Black Nitride Finish 416R Stainless Steel Material Pistol Length with Medium Taper Profile for PS90 SBR 57DF1C7

One of the iconic platforms chambered in the 5.7x28mm FN cartridge is the FN P90, and the company offers a non-NFA, semi-automatic variant for commercial sale in the US. However, this long-barreled model just doesn't look right, which makes this platform a candidate for an NFA-regulated SBR build. Enter CMMG and its PS90 barrel.

The CMMG PS90 barrel is the correct length for a PS90 SBR, measuring in at 10.4 inches. The barrel is machined from 4140 chrome-moly steel and features a salt-bath nitride finish that protects it from wear and corrosion. The barrel features a 1:9-inch twist rate and is threaded at the muzzle with M12X1.0 LH threads. Now all that's needed to finish up your build is a PS90 flash hider or thread adapter!