The Adams Arms ERMOX XDEFENSE MX is a semi-automatic 12-gauge shotgun configured with an 18.5 barrel and a design focused on practical field and duty use. It features a pistol-grip skeleton stock and a marine-style receiver design intended for durable performance in corrosive environments. The platform includes multiple accessory mounting points and user-oriented controls to support fast handling and quick follow-up shots.
Key Specifications
- The gauge is 12.
- The barrel measures 18.5 inches.
- The action is Semi-Automatic.
- The chamber is rated for 3-inch shells.
- Includes a 5-piece choke set with wrench for patterning and range use.
- The safety is a manual safety.
- Equipped with the New Receiver Design Marine for enhanced corrosion resistance.
- The stock is a pistol-grip skeleton stock with a rubber butt plate for controlled shouldering.
- The magazine capacity is 5+1.
- Features a ported barrel, extended bolt handle and release button, and Picatinny rails on the receiver and barrel for optics and accessories.
Designed for users who value straightforward, capable shotguns, the ERMOX XDEFENSE MX combines a compact 18.5in barrel with practical controls and accessory readiness. Its marine-conscious receiver and robust feature set make it a versatile choice for range work and general-purpose use where corrosion resistance and modularity matter.
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.




