Adamson Xdefense Rx 12Ga 18.5 Red X Semi Sg
The Adamson Xdefense Rx is a 12-gauge semi-automatic shotgun purpose-built for home defense and tactical applications. With an 18.5" ported barrel and a compact pistol-grip skeleton stock, this shotgun delivers quick target acquisition and rapid follow-up shots in tight quarters. The Xdefense Rx combines aggressive styling with practical ergonomics—extended bolt handle and release button for faster manipulation, Picatinny rails on both receiver and barrel for mounting lights or optics, and a ghost front sight for fast target pickup. Whether you're setting up a home-defense battery or running force-on-force drills, the Xdefense Rx is engineered for speed and reliability.
Adamson designed the Xdefense Rx around shooter feedback from defensive shotgun work. The 5+1 magazine capacity gives you six rounds ready to go; the 3" chamber handles standard and magnum loads. A five-piece choke tube set with wrench means you can dial in your pattern for buckshot or slugs. The ported barrel reduces muzzle rise and recoil impulse, making rapid strings more controllable. Manual safety, rubber butt pad, and the reinforced skeleton stock keep weight down and handling sharp—critical in a home-defense gun where every ounce matters.
This is a semi-automatic shotgun for shooters who value speed, modularity, and purpose-driven design. The Xdefense Rx doesn't pretend to be a hunting gun; it's built for the defensive and tactical mission. The receiver's aggressive red-accented design signals intent, but it's the extended controls, rail system, and recoil management that actually matter when it counts.
Key Features
- 12-gauge semi-automatic with 3" chamber
- 18.5" ported barrel to reduce muzzle rise and recoil
- Picatinny rails on receiver and barrel for lights and optics
- Extended bolt handle and release button for faster manipulation
- Compact pistol-grip skeleton stock with rubber butt pad
- Ghost front sight for rapid target acquisition
- 5+1 magazine capacity
- Five-piece choke tube set with wrench included
- Manual safety
- Fast-loading design
Specifications
| Gauge | 12 |
| Barrel Length | 18.5" |
| Chamber | 3" |
| Type | Semi-Automatic |
| Magazine Capacity | 5+1 |
| Stock Type | Pistol Grip Skeleton |
| Front Sight | Ghost Sight |
| Safety | Manual |
| Picatinny Rails | Receiver and Barrel |
| Barrel Features | Ported |
| Choke Tubes | 5-piece set with wrench |
| Butt Pad | Rubber |
Frequently Asked Questions
What choke tubes come with the Adamson Xdefense Rx?
The shotgun ships with a five-piece choke tube set and wrench, giving you the flexibility to adjust your pattern for buckshot, slugs, or birdshot depending on your mission.
Can I mount a light or optic on this shotgun?
Yes. The Xdefense Rx features Picatinny rails on both the receiver and barrel, so you can mount tactical lights, red dots, or other accessories without modification.
What's the magazine capacity and how many rounds does it hold?
The Xdefense Rx holds 5 rounds in the magazine plus 1 in the chamber, for a total of 6 rounds ready to deploy.
Is the ported barrel effective for reducing recoil?
The ported barrel is designed to vent gases upward and slightly rearward, which helps reduce muzzle rise and felt recoil—particularly useful when you need to land quick follow-up shots.

