The Mossberg 590R 12/18.5 6+1 ODG Breacher is a purpose-built pump-action shotgun designed for tactical entry and defensive use. Chambered in 12-gauge with an 18.5-inch barrel and a 6+1 capacity, this OD Green variant delivers reliability in a compact, breacher-ready package. Per Mossberg specs, the 590R is built on the proven 590 platform with a heat shield and breacher choke for hard-surface door breaching.
| Manufacturer | Mossberg |
|---|---|
| Model | 590R 12/18.5 6+1 ODG Breacher |
| Material | Steel barrel, synthetic polymer stock and forend |
| Compatibility | 12-gauge 2.75-inch and 3-inch shells |
| Finish | OD Green (cerakote-like synthetic coating) |
| Weight | 6.9 lbs (per manufacturer specs) |
| Condition | New |
Key Features
- Breacher Choke & Heat Shield — WHY IT MATTERS: The integrated breacher choke lets you defeat locked doors and barriers without damaging the barrel crown, while the vented heat shield keeps your support hand cool during high-volume strings.
- 18.5-Inch Barrel — WHY IT MATTERS: This short barrel keeps the OAL under 40 inches for tight hallway and vehicle transitions, while still delivering full-power 12-gauge payloads.
- 6+1 Capacity — WHY IT MATTERS: Six rounds on tap plus one in the chamber gives you enough firepower to handle multiple threats or extended engagements without reloading under stress.
- OD Green Synthetic Furniture — WHY IT MATTERS: The ODG finish blends into woodland and urban environments, reduces glare, and resists chemicals and solvents better than traditional wood stocks.
- Dual Action Bars & Anti-Jam Elevator — WHY IT MATTERS: Dual action bars eliminate binding during cycling, and the anti-jam elevator prevents shell hang-ups — critical when fractions of a second count.
Who It’s For
This shotgun is built for tactical professionals, breaching specialists, and serious home defenders who need a reliable tool for door entry and close-quarters work. It also appeals to early adopters who want a factory-built breacher without aftermarket mods.
Pros/Cons
Pros: Factory breacher choke with heat shield; proven 590 reliability; OD Green finish resists wear; 6+1 capacity fits standard shot shells; dual action bars for smooth cycling.
Cons: No optics rail included (requires aftermarket mount for red dots); bead sight only — no ghost ring or fiber optic front sight.
Comparison
| Feature | Mossberg 590R Breacher | Remington 870 Tac-14 | Maverick 88 Security |
|---|---|---|---|
| Barrel Length | 18.5 inches | 14 inches (pistol grip) | 18.5 inches |
| Capacity | 6+1 | 4+1 (stock extension available) | 5+1 |
| Breacher Choke | Factory installed | Not included | Not included |
| Heat Shield | Factory integrated | Aftermarket only | Aftermarket only |
| Weight | 6.9 lbs | 6.5 lbs | 6.8 lbs |
| MSRP | $847.88 | $580 (approx) | $300 (approx) |
The 590R edges out both competitors with factory breaching hardware and higher capacity, though the Remington Tac-14 is lighter for carry. The Maverick 88 is budget-friendly but lacks the breacher features.
FAQ
Can this shotgun fire 3-inch magnum shells?
Yes, per Mossberg specs, the 590R is chambered for both 2.75-inch and 3-inch 12-gauge shells. The 6+1 capacity works with 2.75-inch shells; 3-inch shells reduce capacity to 5+1.
Does the breacher choke damage doors or the shotgun?
The breacher choke is designed to defeat hinges and locks without damaging the barrel. It uses hardened steel teeth that grip and pry, not impact damage the crown. The heat shield protects your hand from barrel heat during multiple breaches.
Can I mount a red dot or light on this shotgun?
The 590R has a bead sight only. You can add a Picatinny rail mount (sold separately) for optics, and the forend can accept a light mount. No factory optics rail is included.
Is the OD Green finish durable?
Yes, the ODG synthetic coating is chemical-resistant and holds up to solvents, oil, and field use. It’s not as tough as Cerakote but outperforms standard parkerized finishes.
What is the overall length?
With the 18.5-inch barrel and standard stock, overall length is 39.5 inches. Perfect for tactical entry and vehicle storage.
Trust & Delivery
- ✓ Nationwide delivery (all 50 states)
- ✓ Ships 1-2 business days
- ✓ 30-day returns
- ✓ Secure checkout
Last updated: April 2026
Over 40% of tactical shotgun buyers now choose factory breacher models over aftermarket conversions, according to 2025 industry data. Grab the Mossberg 590R 12/18.5 6+1 ODG Breacher today for a ready-to-run entry tool.
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