KNS Precision AR-15 Supressor Adapter .30 Caliber 1/2x28 to 5/8x24 Nitride Black. continues to move forward in the firearms industry by sticking to the core values that started the company and by keeping their eyes on the future of the firearms and accessory market. Specifications for KNS Precision AR-15 Supressor Adapter: Manufacturer: KNS Precision Color: Black Finish: Nitride Projectile Caliber: .30 Caliber Gun Make: AR Platform Gun Model: AR-15 Features of KNS Precision AR15 Adaptor 1/2X28 to 5/8X24 AR15 to 30 Cal Suppressor Nitride Finish Black: OD 5/8x24 ID 1/2x28 Package Contents: KNS Precision AR15 Adaptor 1/2X28 to 5/8X24 AR15 to 30 Cal Suppressor Nitride Finish Black What firearm models does the manufacturer say KNS Precision AR-15 Supressor Adapter is compatible with? The manufacturer says that KNS Precision AR-15 Supressor Adapter is compatible with AR-15KNS Precision 12-28to58-24TA: AR-15 Supressor Adapter .30 Caliber 1/2x28 to 5/8x24 Nitride Black