Infinite Product Solutions M13 x 1 LH - Thread Adapter Black Oxide. Designed for .223 caliber firearms this adapter is made from high-quality 304 stainless steel ensuring durability and a secure fit. Enhance your firearm's versatility with this reliable and precision-engineered adapter from Infinite. Specifications for Infinite Product Solutions M13 x 1 LH - 1/2-28 Thread Adapter: Manufacturer: Infinite Product Solutions Fabric/Material: 304 Stainless Steel Threads per Inch: 13x1 LH Gun Make: Steyr Gun Model: Steyr AUG Weight: 1.328 oz Width: 0.79 in Height: 0.79 in Caliber: 5.56x45mm NATO .223 Remington Length: 1.47 in Gun Type: Rifle Features of Infinite Product Solutions M13 x 1 LH - 1/2-28 Thread Adapter Converts Steyr AUG threads to common 1/2-28 threads Ensures durability and secure fit Enhances firearm versatility Precision-engineered Package Contents: Infinite Product Solutions M13 x 1 LH - 1/2-28 Thread Adapter What firearm models does the manufacturer say Infinite Product Solutions M13 x 1 LH - 1/2-28 Thread Adapter is compatible with? The manufacturer suggests that Infinite Product Solutions M13 x 1 LH - 1/2-28 Thread Adapter is compatible with Steyr AUGInfinite Product Solutions 13LH-1228-BSS: M13 x 1 LH - 1/2-28 Thread Adapter Black Oxide