ATI ATIGMB3R S-Beam MB3-R | 12 Gauge | 18.5″

The American Tactical / ATI ATIGMB3R S-Beam MB3-R is a 12 Gauge pump shotgun featuring an 18.5″ barrel and a 4+1 magazine capacity. It is presented with a bead sight and a black finish. The firearm is configured as a manual pump-action and is suitable for range training and general field use. Specifications below reflect only the data provided by the manufacturer listing.

Product Specifications

• The manufacturer is American Tactical / ATI.
• The model is ATIGMB3R S-Beam MB3-R.
• The gauge is 12 Gauge.
• The barrel length is 18.5 inches.
• The action is Pump.
• The capacity is 4+1 rounds.
• The sight is a bead sight.
• The finish is Black.
• The UPC is 813393019913.

Its compact 18.5-inch barrel and straightforward pump action make this model practical for range training and field work where simple, reliable operation is preferred. Buyers seeking a basic, no-frills 12-gauge pump shotgun with bead sights and a 4+1 capacity will find this configuration direct and serviceable.

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