ATI MB3-R 12 Gauge Pump Shotgun 18.5" Barrel 4+1 Capacity

The ATI MB3-R delivers reliable pump-action performance in a compact defensive configuration. This 12-gauge shotgun combines a corrosion-resistant stainless steel receiver with practical features for home defense and tactical applications.

What Makes This Different

The MB3-R features a stainless steel receiver that resists corrosion better than standard carbon steel alternatives. The 18.5-inch smooth bore barrel provides optimal maneuverability in confined spaces while maintaining effective range for defensive scenarios. The synthetic stock construction reduces weight compared to wood alternatives and withstands harsh environmental conditions without warping or cracking.

Key Features

• Stainless steel receiver with black finish for corrosion resistance
• 18.5-inch smooth bore barrel optimized for defensive loads
• 4+1 shell capacity with 3-inch chamber capability
• Black synthetic stock and forend for durability
• Pump-action operation for reliable cycling
• Right-hand configuration with standard controls
• Compatible with standard 12-gauge ammunition

The MB3-R cycles smoothly with both 2.75-inch and 3-inch shells, providing versatility for different load types. The synthetic furniture maintains consistent dimensions across temperature variations, ensuring reliable operation in diverse conditions. The compact overall length makes this shotgun suitable for vehicle storage and close-quarters applications while retaining enough barrel length for effective pattern density.

Technical Specs

• Gauge: 12-gauge
• Action: Pump-action
• Barrel Length: 18.5 inches
• Chamber: 3-inch
• Capacity: 4+1 rounds
• Receiver: Stainless steel with black finish
• Stock: Black synthetic
• Bore: Smooth (no choke)
• Hand: Right-hand
• UPC: 813393019913

The ATI MB3-R represents a practical choice for those seeking a dependable defensive shotgun without unnecessary complexity. The stainless steel construction and synthetic components ensure long-term reliability with minimal maintenance requirements.