Infinite Product Solutions - M16 x 1 LH Thread Adapter Black Knurled. 45 ACP KRISS .45 ACP left-hand threaded Glock .45 ACPT and other M16 x 1 LH accessories to your 1/2-28 (9mm .22 .223 5.56) barrel threads. Unlock more possibilities for your barrel and the multi-cal potential of your M16 x 1 LH device. This adapter is labeled for easy identification and made from durable steel. Specifications for Infinite Product Solutions 1/2-28 - M16 x 1 LH Thread Adapter: Manufacturer: Infinite Product Solutions Color: Black Fabric/Material: Steel Gun Make: KRISS Heckler & Koch Glock Gun Model: Kriss Vector Condition: New Last Chance: Yes Width: 0.79 in Height: 0.79 in Length: 1.47 in Gun Type: Pistol Caliber: .45 ACP Features of Infinite Product Solutions 1/2-28 - M16 x 1 LH Thread Adapter Unlock more possibilities for your barrel Unlock the multi-cal potential of your M16 x 1 LH device Labeled for easy identification Package Contents: Infinite Product Solutions 1/2-28 - M16 x 1 LH Thread Adapter What firearm models does the manufacturer say Infinite Product Solutions 1/2-28 - M16 x 1 LH Thread Adapter is compatible with? The manufacturer says that Infinite Product Solutions 1/2-28 - M16 x 1 LH Thread Adapter is compatible with Kriss VectorInfinite Product Solutions 1228-16LH-BS-K: 1/2-28 - M16 x 1 LH Thread Adapter Black Knurled