The Ermox XDefense RX in 12 gauge and tan finish (brand part no. XDEFENSETX) is a semi-automatic defensive shotgun cycling on the Auto-Regulating Gas-Operated (ARGO) system, a self-cleaning, short-stroke dual-piston design built around an 18.5-inch ported barrel. Adams Arms positions the gas port just forward of the chamber for less fouling and more reliable cycling, with pistons pushing directly against the bolt to eliminate extra linkage weight. Among shotguns in the semi-auto shotguns category, this XDefense RX favors shooters who want a self-cleaning gas system on a compact defensive platform.

Key Specifications

• Chambered in 12 gauge with a 3-inch chamber.
• Cycles on the ARGO short-stroke dual-piston gas system.
• Features an 18.5-inch ported barrel.
• Feeds from a magazine with a 5+1 capacity.
• Ships with a five-piece choke set and wrench.
• Built with a pistol-grip skeleton stock and rubber butt plate.
• Sighted with a ghost-ring front sight.
• Equipped with Picatinny rails on both the receiver and barrel.
• Finished in tan.

Frequently Asked Questions

What gas system does this shotgun use? The ARGO system, a self-cleaning, short-stroke dual-piston design.

Does this shotgun accept optics? Yes, Picatinny rails on the receiver and barrel support optics and accessories.

Buy the Ermox XDefense RX Shotgun

A self-cleaning gas system on a compact defensive platform is exactly what the XDefense RX delivers. As soon as it’s ready to ship, order it from our Lubbock, Texas gun shop for fast, insured shipping to your FFL.