Description

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.