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GForce Arms MKX3 12-HAMMER Tactical 12 Gauge Black Shotgun

The GForce Arms MKX3 12-HAMMER is a gas-operated semi-automatic shotgun designed to cycle a broad range of 12 Gauge ammunition, including light 7.5 shot loads and heavier 3-inch T-shot and steel loads. Its 18.5-inch 4140 steel barrel provides a practical balance of handling and performance for home defense, range use, and tactical applications. The forged T6-7075 aluminum upper receiver, polymer lower receiver, and synthetic stock and forend create a durable, manageable platform weighing 8.4 pounds. A Benelli Mobile Choke System with five factory chokes allows users to tailor shot patterns for different applications.

Key features

  • Gas-operated buffertube system is designed to cycle both light and heavy 12 Gauge loads.
  • 18.5-inch 4140 steel barrel supports maneuverability in confined spaces and practical field use.
  • 5+1 capacity provides useful ammunition reserve for defensive and training applications.
  • Accepts 2 3/4-inch and 3-inch shotshells.
  • Benelli Mobile Choke System includes CYL, IMP CYL, MOD, IMP MOD, and FULL chokes.
  • Forged T6-7075 aluminum upper receiver and polymer lower receiver balance durability with manageable weight.

The GForce Arms MKX3 12-HAMMER combines flexible ammunition performance, practical handling, and adaptable choke options in a durable semi-automatic shotgun.

GForce Arms MKX3 12-HAMMER Tactical 12 Gauge Black Shotgun: quick facts

What caliber is the GForce Arms MKX3 12-HAMMER Tactical 12 Gauge Black Shotgun?
It is chambered in 12 Gauge.
How many rounds does it hold?
5+1 rounds.
How big and heavy is it?
Barrel length 18.5 inches, overall length 31.1 inches, weight 8.4 pounds.
What kind of action does it use?
Semi-Automatic.
Is it optic ready or threaded?
Optic ready: Yes; threaded barrel: No.
What sights and finish does it have?
Sights: Standard Sights; finish: Black.
Is it new or used?
New, in the original packaging.
Can I buy it in Connecticut?
Yes. It ships to a licensed FFL dealer in Connecticut; you pick it up there after the background check. Connecticut buyers need a Long Gun Eligibility Certificate or pistol permit, and the Connecticut dealer will only transfer rifles and shotguns that are legal under the state's assault weapon law.
Is it in stock?
Yes, at $365.99. Orders leave within 1-2 business days; shipping is free over $999.

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