Infinite Product Solutions M13.5 x 1 LH - Thread Adapter Black Smooth. 5 x 1 LH threaded barrels (SIG Sauer H&K KRISS and Canik) to U.S. standard 1/2-28 threads allowing for the attachment of a wide range of muzzle accessories. Ideal for enhancing your firearm's versatility. Specifications for Infinite Product Solutions M13.5 x 1 LH - 1/2-28 Thread Adapter: Manufacturer: Infinite Product Solutions Color: Black Fabric/Material: Stainless Steel Threads per Inch: 1/2x28 Gun Make: KRISS Canik SIG Sauer Heckler & Koch Glock Gun Model: SIG Sauer MPX Kriss Vector Weight: 12.8 oz Width: 0.79 in Height: 0.79 in Length: 1.47 in Caliber: 9mm Luger Gun Type: Pistol Features of Infinite Product Solutions M13.5 x 1 LH - 1/2-28 Thread Adapter Converts M13.5 x 1 LH threaded barrels to U.S. standard 1/2-28 threads Precision manufactured Allows for the use of a wide range of muzzle accessories Ideal for firearm enthusiasts seeking versatile threading options Corrosion resistant Wrench flats for easy and secure installation Engraved for easy thread identification Package Contents: Infinite Product Solutions M13.5 x 1 LH - 1/2-28 Thread Adapter What firearm models does the manufacturer say Infinite Product Solutions M13.5 x 1 LH - 1/2-28 Thread Adapter is compatible with? The manufacturer suggests that Infinite Product Solutions M13.5 x 1 LH - 1/2-28 Thread Adapter is compatible with Kriss Vector SIG Sauer MPXInfinite Product Solutions 135LH-1228-BS: M13.5 x 1 LH - 1/2-28 Thread Adapter Black Smooth