The Tactical Solutions’ PAC-LITE pistol barrel is a lightweight and accurate .22 LR barrel and receiver for the Ruger Mark I II or III and Ruger 22/45 pistol. The Pac-Lite 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 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. – Shoot with Accuracy: The barrel’s innovative chromoly steel bore and target crown provide pinpoint accuracy – Quick and Easy Target Acquisition: Lightweight durable construction – Noticeable Craftsmanship: Unique design & quality above all others – Choice of Barrel Length: Choose between 4.5 and 6 barrels – Choice of Barrel Style: Fluted or non-fluted barrel your choice – Colorful Options: Several color options to fit your individual choice – Easy to Install: Internet video instructions no gunsmithing needed – Easy to carry: Extremely lightweight and durable materials – Easy Optics Attachment: Drilled and tapped for easy Scope Rail attachment – Easy Silencer or Compensator Attachment: Threaded muzzle for thread-on silencer or compensator – Smooth Cycling: Innovative bolt creates extremely smooth shooting – Versatile Use: Perfect for hunting plinking and target shooting – Pinpoint Sight System: Comes standard with ramped front sight – SPECS – Milled from 6061-T6 Aluminum – Weight: 8.6 Ounces – 1 in 16 twist – Target crown – 1.00 Target Diameter Barrel – Threaded ½ X 28 for the addition of a silencer or compensator – Chromoly steel bore – Drilled and tapped for the addition of an optic rail