Enhance your PS90 SBR build with the CMMG 57DA53A Thread Adapter. This essential accessory allows you to attach your preferred muzzle device, ensuring optimal performance. Crafted specifically for the PS90, this thread adapter converts the standard M12 x 1.0 LH threads to 1/2"-28, providing compatibility with a wide range of 5.56/.223 muzzle devices. Perfect part for PS90 SBR Durable construction for reliable use Easy installation for quick upgrades Compatibility with most 5.56/.223 devices Elevate your shooting experience with this must-have adapter.