The tactical Solutions' PAC-LITE IV pistol barrel is a premier lightweight and precise .22LR barrel and receiver compatible with Ruger mark IV and mark IV 22/45 models. This PAC-LITE IV enhancement epitomizes TacSol's reputation in the .22LR aftermarket barrel industry, delivering lightweight, high accuracy, and user-friendly barrel solutions. This barrel substantially enhances accuracy, performance, and reliability, making it an essential upgrade. The 1 inches outside diameter of the threaded barrel is meticulously designed to ensure optimal performance whether with or without suppressor or compensator attachments. Adding suppressors is a breeze - simply thread them onto the barrel's end. Hand-chambered for 22LR, featuring a target crown and chromoly bore, the PAC-LITE replacement barrel upgrade encompasses all the qualities you desire in a pistol barrel.