TACSOL PAC-LITE IV RUG MKIV 22LR 4.5 ODG

The PAC-LITE IV upgrade from Tactical Solutions replaces the factory Ruger® Mark IV® or Mark IV® 22/45® upper to reduce weight, improve reliability, and enhance accuracy. This model is supplied in a 4.5-inch barrel length and is available in Gun Metal Gray, Matte Black, and Matte Olive Drab finishes. Installation is intended to be user-friendly and does not require a gunsmith for mounting to an existing Mark IV frame. A compact scope such as the Vortex Crossfire II 2-7×32 pairs well with this platform while remaining well under $1,000.

Applications: precision rimfire target shooting and rimfire training/plinking make the most of the Pac-Lite IV’s balance and accuracy improvements.

Product Specifications

• The UPC is 879971008144.
• This upgrade replaces the factory Ruger Mark IV and Mark IV 22/45 uppers.
• The barrel measures 4.5 inches.
• The unit is offered in 4.5-inch and 6-inch barrel lengths according to the source.
• The weight is listed as 8.5 ounces.
• The rate of twist is 1:16.
• The muzzle is threaded 1/2-28.
• The muzzle is finished with an 11-degree target crown.
• The breech face is described as stainless steel in the source.
• The barrel is described as lightweight aluminum in the source.
• The receiver material is unspecified/conflicting in the source; see notes.
• The unit is drilled and tapped for Pac-Lite scope bases.
• A thread protector (end cap) is included with the barrel.
• Available finishes include Gun Metal Gray, Matte Black, and Matte Olive Drab.

The Pac-Lite IV focuses on reducing weight while providing a stable, accurate rimfire platform for range work and training. Its drilled-and-tapped receiver allows for straightforward optics mounting, and the included thread protector keeps threads protected when a muzzle device is not fitted. If you value a lightweight, configurable rimfire upper for precision practice or casual target work, this upgrade delivers practical improvements without unnecessary complexity.