The Tactical Solutions Pac-Lite barrel (brand part no. PL45TEMBRF) is the original go-to upgrade for a Ruger Mark I, Mark II, Mark III, or 22/45-series pistol, crafted from a solid piece of aircraft aluminum for an ultra-strong, lightweight setup. The reduced weight over a factory steel barrel improves balance and accuracy, and installation on an existing Mark-frame pistol requires no gunsmith. This shorter 4.5-inch version comes fluted and finished in matte black, and it is drilled and tapped for Pac-Lite scope bases, giving shooters a straightforward path to mount an optic later. A thread protector end cap is included with the barrel for muzzle protection when not in use.

Key Specifications

• Chambered in .22 LR, matching the Mark-series pistol platform.
• Barrel measures 4.5 inches in length.
• Machined from a solid piece of aircraft aluminum for reduced weight.
• Uses a 1:16 twist rate.
• Features a matte black fluted finish.
• Muzzle threaded 1/2×28, with a thread protector end cap included.
• Drilled and tapped for Pac-Lite scope bases.
• Weighs approximately 6.2 ounces, notably lighter than a factory steel barrel.
• Installs on an existing Mark-frame pistol without a gunsmith.

Frequently Asked Questions

What pistols does this barrel fit? Ruger Mark I, Mark II, Mark III, and 22/45-series pistols.

Is the muzzle threaded? Yes, it is threaded 1/2×28 and includes a thread protector end cap.

Do I need a gunsmith to install it? No, installation on an existing Mark-frame pistol is straightforward.

Buy the Tactical Solutions Pac-Lite Barrel, 4.5-inch Black

Order this Tactical Solutions Pac-Lite barrel from our Lubbock, Texas gun shop for fast, direct shipping, and browse more gun parts to upgrade your Ruger Mark-series pistol.