Rock Island X4 Tact LI-ON Full Size Frame 12 Gauge Semi-Auto 3″ 4+1 18.50″ Black Steel Barrel, Black Anodized Aluminum Receiver, Black Fixed w/Pistol Grip Synthetic Stock

When you need a tactical 12-gauge that cycles reliably through varied ammunition, the Rock Island X4 Tact LI-ON delivers straightforward performance. This semi-auto shotgun pairs a compact 18.50" barrel with a fixed pistol-grip stock—practical for home defense and training scenarios. Before any purchase, understand your obligations under California firearm laws. TacticCAL in Sunnyvale guides you through the complete process.

Choke System and Sight Configuration

The X4 ships with three interchangeable chokes—Full, Improved Cylinder, and Modified—letting you pattern this shotgun for different distances and shot types. Fiber optic front sight paired with an adjustable rear sight gives you a clean sight picture in variable light. Whether you're zeroing at the range or handling home defense scenarios, this combination handles both roles. Learn more about the private party transfer process if you're acquiring this firearm through a third party. Browse our gun store.

Frequently asked questions

What is the magazine capacity of the Rock Island X4 Tact LI-ON?

This shotgun holds 4 rounds in the magazine tube plus 1 in the chamber, giving you a 4+1 capacity. The 18.50" barrel and aluminum receiver keep overall weight manageable for extended shooting sessions.

Can this shotgun handle 3-inch shells?

Yes. The X4 Tact LI-ON is chambered in 12 Gauge 3", so it cycles both 2.75" and 3" ammunition. Check your ammunition specifications before loading.

What is an FFL transfer in California?

An FFL transfer is when a federally-licensed dealer like TacticCAL receives a firearm shipped from another seller and processes California's required DROS paperwork to legally transfer it to you. Find FFL dealer Fremont at TacticCAL.