The Tactical Solutions PAC-LITE IV is an upgrade upper designed to replace factory Ruger Mark IV or Mark IV 22/45 uppers. It is offered in multiple barrel lengths, including a 4.5″ option, and is intended to reduce weight while improving balance and accuracy. Installation is user-friendly and can be completed without the need for a gunsmith.
Key Specifications
- The caliber is .22 Long Rifle (22LR).
- The barrel measures 4.5 inches for the listed configuration.
- The unit weight is 8.5 ounces.
- The rifling twist rate is 1:16.
- The muzzle threads are 1/2-28.
- The muzzle is finished with an 11-degree target crown.
- The barrel is described as lightweight aluminum.
- The breech face is described as stainless steel.
- The upper is drilled and tapped for PAC-LITE scope bases.
- A thread protector (end cap) is included with the barrel.
The PAC-LITE IV combines a lightened profile with precision-oriented features to improve handling and consistency on the range. Its 4.5″ configuration and target crown help deliver predictable shot placement while keeping overall weight low. For shooters who want a straightforward replacement upper for compatible Ruger platforms, this unit is designed to simplify installation and enhance the shooting experience.
Product information is supplied by the manufacturer and/or distributor and may be automatically formatted or enhanced using AI for clarity and consistency. While we strive for accuracy, specifications, features, and included items may change without notice. Always verify details using the manufacturer’s official documentation and the information shown on this product page before purchase or use.
