TACSOL PAC-LITE IV | RUG MKIV 22LR 4.5in

The TACSOL Pac-Lite IV upgrade is an aftermarket upper designed to replace the factory Ruger® Mark IV® or Mark IV® 22/45® upper with the goal of reducing weight, improving balance and enhancing accuracy. This listing is the 4.5 inch Olive Drab (ODG) configuration and includes a thread protector (end cap). For a compact optic under $1,000 a red-dot such as the Vortex Venom pairs well with this platform for quick target acquisition without adding significant mass. Typical applications include precision rimfire target shooting and recreational range training.

Product Specifications

• Designed to replace the factory Ruger Mark IV or Mark IV 22/45 upper.
• The barrel measures 4.5 inches.
• The stated rate of twist is 1:16.
• The muzzle threads are listed as 1/2 x 28.
• Features an 11 degree target crown at the muzzle.
• The product weight is listed as 8.5 oz.
• The length is listed as 4.5 inches.
• This unit is noted as drilled and tapped for Pac-Lite scope bases.
• A thread protector (end cap) is included with the barrel.
• Available finishes are listed as Gun Metal Gray, Matte Black, and Matte Olive Drab, and this listing is the ODG (Matte Olive Drab) finish.
• The manufacturer description identifies the breech face specifically as stainless steel in source text.
• The manufacturer description also lists a lightweight aluminum construction for the barrel and receiver in source text; that material statement is inconsistent with the breech face notation and requires review.
• The UPC is 879971008151.

The Pac-Lite IV is built to offer a lighter, better-balanced upper for owners of Ruger Mark IV platforms who want improved handling and accuracy for rimfire target work and general range use. The 4.5-inch barrel keeps the assembly compact while the tapped mounting provisions accept Pac-Lite scope bases for optics integration. The included thread protector preserves the muzzle threads when a muzzle device is not fitted.