TACSOL PAC-LITE Ruger 22LR 4.5" Fluted Barrel - Olive Drab Green

The TACSOL PAC-LITE is a drop-in barrel upgrade for Ruger Mark series .22 LR pistols, delivering a genuine improvement in balance, handling, and sight radius without requiring a gunsmith to install. Built from aircraft-grade aluminum and finished in olive drab green with a fluted profile, the PAC-LITE combines durability with a weight of just 6.2 ounces—a meaningful reduction that transforms how your Mark I, Mark II, Mark III, or 22/45 feels in hand. Whether you're running precision .22 target work, casual plinking, or training, this barrel pairs the inherent accuracy of the .22 LR cartridge with a platform designed to make handgun shooting more enjoyable and controllable.

The 4.5-inch fluted barrel spins ammunition at a 1-16 twist rate and terminates in 1/2x28 threads, accommodating standard .22 suppressors and muzzle devices. Your barrel arrives pre-drilled and tapped for PAC-LITE scope bases, so mounting optics is straightforward, and the included thread protector keeps the muzzle clean between uses. The olive drab finish is as practical as it is distinctive—it resists glare and blends into a working gun aesthetic without the cost of custom finishing.

What sets the PAC-LITE apart is simplicity: there's no apologies, no special tools, and no guesswork. Swap it onto your existing frame, confirm function, and you're shooting. The fluted design isn't just eye candy—it improves heat dissipation and reinforces rigidity without adding weight. If you shoot a Ruger .22 pistol and want a genuine upgrade that's ready to go out of the box, the PAC-LITE delivers on the promise of better balance, faster handling, and cleaner aesthetics.

Key Features

• Aircraft aluminum construction for lightweight strength—6.2 oz total weight
• Drop-in compatibility with Ruger Mark I, II, III, and 22/45 frames—no gunsmith required
• 4.5-inch fluted barrel with 1-16 twist for smooth .22 LR performance
• 1/2x28 threaded muzzle for suppressor and accessory mounting
• Pre-drilled and tapped for PAC-LITE scope bases
• Olive drab green matte finish for reduced glare and durability
• Thread protector included

Specifications

Frequently Asked Questions

Will this barrel fit my Ruger Mark pistol without a gunsmith?

Yes. The PAC-LITE is engineered as a drop-in replacement and installs directly onto Ruger Mark I, Mark II, Mark III, and 22/45 frames without special tools or gunsmith labor.

Can I mount a suppressor or scope on the PAC-LITE?

The muzzle threads are 1/2x28, which accepts standard .22 suppressors and muzzle devices. The barrel also comes pre-drilled and tapped for PAC-LITE scope bases, making optics mounting straightforward.

What's included in the box?

The barrel ships with a thread protector (end cap) to keep the muzzle clean and protected when not in use.

How much lighter is the PAC-LITE compared to factory barrels?

The PAC-LITE weighs 6.2 ounces. The weight reduction improves balance and handling, particularly noticeable in extended shooting sessions or precision work.