Tactical Solutions Pac-Lite IV 6″ Fluted Barrel & Receiver — .22 LR

The Tactical Solutions Pac-Lite IV is a replacement barrel and receiver assembly intended for Ruger Mark IV and Mark IV 22/45 pistols. This Pac-Lite IV configuration features a 6″ fluted, suppressor-ready barrel chambered in .22 LR and finished in black anodized. It is hand-chambered with a chromoly bore and uses a 1:16 rate of twist. The threaded muzzle is 1/2″-28 and the barrel includes an 11-degree target crown and a thread protector (end cap).

Key Specifications

• The caliber is .22 LR.
• The barrel length is 6″.
• The finish is black anodized.
• The bore type is chrome moly.
• The barrel is fluted.
• The barrel is suppressor-ready with 1/2″-28 threading.
• The rate of twist is 1:16.
• The sights are blade ramp front and adjustable rear.
• The listed weight is 9.5 oz.
• Compatibility is listed as Ruger Mark IV and Mark IV 22/45.

The Pac-Lite IV offers a lightweight, precision-oriented replacement for Ruger Mark-series shooters seeking improved balance and a purpose-built, threaded barrel option. Its chrome-moly bore, target crown, and suppressor-ready profile make it a practical upgrade for range use and accurate .22 LR performance while preserving simple installation and proven TacSol construction.