The Rock Island Armory Meriva 3-in-1 12 gauge pump shotgun combo (Armscor part no. MR25-P101-MC) ships with two barrels so one pump gun covers both defense and field use. One is an 18.5-inch cylinder bore smooth barrel, and the other is a 28-inch vent rib barrel. A synthetic removable rear stock is part of the package. The capacity is 4+1, and the front sight is a simple bead. It is a flexible, budget-friendly pump for home defense and sport shooting.

Key Specifications

• The gauge is 12, the most versatile shotgun gauge.
• The first barrel is 18.5-inch cylinder bore smooth, suited to home defense and tactical use.
• The second barrel is a 28-inch vent rib, designed for sport and field shooting.
• Capacity is 4+1, four in the magazine and one in the chamber.
• The action is pump action, simple and reliable.
• The stock is a synthetic removable rear stock, and the grip is fixed polymer.
• The front sight is a bead, a simple reference for quick shots.
• The finish is black parkerized, a low-glare, corrosion-resistant treatment.
• Overall length with the 18.5-inch barrel is 39 inches.
• Weight is 6.17 pounds, easy to carry.

Frequently Asked Questions

What does 3-in-1 mean on this shotgun? Rock Island Armory describes it as a three-in-one package with an 18.5-inch cylinder bore smooth barrel, a 28-inch vent rib barrel and a synthetic removable rear stock, with an optional pistol grip.

How many rounds does it hold? The capacity is 4+1, four in the magazine and one in the chamber.

Is the barrel interchangeable? Yes. The combo includes both an 18.5-inch barrel and a 28-inch vent rib barrel so one gun can serve more than one role.

Buy the Rock Island Armory Meriva 3-in-1 12 Gauge Pump Shotgun Combo, 18.5-Inch and 28-Inch Barrels, 4+1

Instead of buying two shotguns, the Meriva combo gives you two barrels on a single pump action, a smart pick for the shooter who wants flexibility. Order it from our Lubbock, Texas gun shop for fast, insured shipping to your FFL, and see more pump action shotguns in our selection.