Tactical Solutions Pac-Lite IV PLIV45TEMBNF | 22 LR 4.5″

The Tactical Solutions Pac-Lite IV is a lightweight, aftermarket barrel and receiver assembly for Ruger Mark IV and 22/45 pistols designed for improved balance and accuracy. Hand-chambered for .22 LR, it features a chromoly bore, a target crown, and a suppressor-ready threaded muzzle. This 4.5 inch, black anodized Pac-Lite upgrade is intended to drop into compatible Ruger frames and to reduce weight while enhancing shot-to-shot consistency. A compact 1x red-dot optic such as a Vortex Venom or a Holosun HS507-series sight (both typically available well under $1,000) pairs cleanly with the Pac-Lite when using Pac-Lite scope bases for fast target acquisition.

Product Specifications

• The manufacturer is Tactical Solutions.
• The model is Pac-Lite IV.
• The manufacturer part number is PLIV45TEMBNF.
• The caliber is listed as .22 LR.
• The barrel measures 4.5 inches for balanced handling.
• The barrel is described as suppressor ready and includes threading for muzzle attachments.
• The threaded muzzle is specified as 1/2-inch x 28 threads.
• The barrel outside diameter is stated as 1 inch.
• The bore material is chrome moly.
• The rate of twist is 1:16.
• The unit finish is anodized (black).
• The sighting arrangement is blade ramp front and adjustable rear.
• The listed weight is 8.5 ounces.
• The product is noted as drilled and tapped for Pac-Lite scope bases and ships with a thread protector (end cap) included.
• The UPC is 879971008137.

The Pac-Lite IV upgrade emphasizes reduced weight and improved handling for rimfire target work and precision plinking. Its threaded, suppressor-ready muzzle and target crown make it a versatile choice for shooters who want a more consistent, stable platform on Ruger Mark-series and 22/45 pistols. The included thread protector and the compatibility with Pac-Lite scope bases simplify accessory attachment while maintaining a clean profile.

Owners commonly praise the Pac-Lite for its lightweight construction and measurable improvement in balance and accuracy compared with factory barrels, making it a straightforward upgrade for precision rimfire target shooting and competitive plinking.