The Mossberg 590A1 (51663) is a 12 gauge pump-action shotgun built to military specifications with a heavy-walled barrel, metal trigger guard and safety, and Parkerized finish throughout. Designed for serious defensive applications and duty use, this platform delivers proven reliability and durability in a configuration trusted by law enforcement and military users worldwide.
Key Features
- Manufacturer Part Number: 51663
- Gauge: 12 Gauge
- Chamber: 3 inch
- Capacity: 8+1 rounds
- Barrel Length: 20 inches
- Barrel Type: Heavy-walled with Parkerized finish
- Stock: Fixed black synthetic
- Receiver: Drilled and tapped, black Parkerized finish
- Action: Pump-action
- Trigger Guard: Metal
- Safety: Metal tang safety
- Sights: Bead front sight
- Overall Construction: Military specification with metal components
Special Features
- Heavy-walled barrel provides enhanced durability beyond standard field models
- Metal trigger guard and safety button instead of polymer for added strength and longevity
- Parkerized finish on barrel and receiver resists corrosion and wear in harsh conditions
- Drilled and tapped receiver allows mounting of optics or accessories
- Meets military specification MIL-S-3443 for reliability and service life
- Fixed synthetic stock eliminates moving parts for maximum dependability
Practical Benefits
- Ideal for home defense, property security, and tactical applications where reliability is critical
- 8+1 capacity provides substantial firepower without extended magazine tubes
- 20 inch barrel offers a balanced combination of maneuverability indoors and effective range outdoors
- Heavy-walled construction withstands demanding use and high round counts over time
- Fixed stock configuration is legal in all jurisdictions and provides consistent handling
- Drilled and tapped receiver enables addition of red dot sights or tactical lights as needed
- Proven by military and law enforcement agencies for duty carry and vehicle deployment
The Mossberg 590A1 12 gauge (51663) is a proven platform for anyone seeking a durable and dependable option for home defense or tactical preparedness.
| MANUFACTURER | MOSSBERG |
| MODEL | 590 |
| CALIBER | 12 GA |
| TYPE | SHOTGUN |