The American Tactical S-Beam MB3-R is a practical pump action shotgun configured for home defense, security, and general field use. Its 18.5-inch barrel provides a maneuverable profile, while the 12 Gauge chamber accepts shells up to 3 inches in length. The tubular magazine holds 4 rounds, with an additional round in the chamber for a total capacity of 4+1. A receiver-mounted Picatinny rail supports compatible optics, and the railed forend provides additional space for accessories. The shotgun features a blade front sight, black synthetic furniture, a rubber recoil pad, and a crossbolt manual safety.

Key features

• Pump action operation offers dependable manual cycling and straightforward controls.
• 12 Gauge chamber accepts 2 3/4-inch and 3-inch shotshells.
• 4+1 capacity provides five ready rounds in the factory configuration.
• 18.5-inch barrel balances maneuverability with practical handling.
• Receiver-mounted Picatinny rail is ready for compatible optics.
• Picatinny-railed forend supports compatible accessories and customization options, subject to applicable laws and safe handling practices.

The American Tactical S-Beam MB3-R combines a compact barrel, practical capacity, accessory rails, and simple pump action handling in a versatile 12 Gauge platform.