KNS Precision 1/2-36 to 5/8-24 Thread Adapter Black Nitride Finish KNS 1/2-36 to 5/8-24 TA. 30 cal standard thread pitch. OD 5/824 ID 1/236 RH Requires 17mm Wrench Flats (not included) Specifications for KNS Precision 1/2-36 to 5/8-24 Thread Adapter: Manufacturer: KNS Precision Color: Black Finish: Nitride Threads per Inch: 1/2x36 Gun Model: AR-15 Projectile Caliber: .30 Caliber Country of Origin: USA Features of KNS Precision 1/2-36 to 5/8-24 Thread Adapter Dimensions: 3 3 .5 in Package Contents: KNS Precision 1/2-36 to 5/8-24 Thread Adapter What firearm models does the manufacturer say KNS Precision 1/2-36 to 5/8-24 Thread Adapter is compatible with? The manufacturer says that KNS Precision 1/2-36 to 5/8-24 Thread Adapter is compatible with AR-15KNS Precision KNS 1/2-36 to 5/8-24 TA: 1/2-36 to 5/8-24 Thread Adapter Black Nitride Finish