Tactical Solutions PLIV6TEMBRF: The Tactical Solutions' PAC-LITE IV pistol barrel is a lightweight and accurate .22 LR barrel and receiver for the Ruger Mark IV or Mark IV 22/45 barrel. The PAC-LITE IV upgrade represents what TacSol is known for in the .22LR aftermarket barrel industry; lightweight, highly accurate, and easy-to-install barrels. This barrel dramatically increases accuracy, performance, and reliability. The 1" outside diameter of the threaded barrel is designed to shoot and look great with or without the attachment of a suppressor or compensator. Suppressors are easily attached by simply twisting them on the barrel's threaded end. Hand-chambered for 22 LR, with a target crown and Chromoly bore, the PAC-LITE replacement barrel upgrade is everything you could ask for in a pistol barrel. NOTE: This is a serialized item and needs to ship to an FFL.