Gforce Arms GF12HMRB MKX3 12-Hammer 12 Gauge Semi-Auto 5+1 18.5"

The Gforce Arms GF12HMRB MKX3 12-Hammer delivers reliable semi-automatic performance in a compact package designed for tactical applications and home defense. This 12-gauge platform combines an aluminum receiver with proven gas-operated cycling to handle both 2¾" and 3" shells consistently. The 18.5-inch barrel length provides optimal balance between maneuverability and ballistic performance.

What Makes This Different

The MKX3 12-Hammer stands apart with its lightweight aluminum receiver construction that reduces overall weight without sacrificing durability. Unlike traditional steel-receiver shotguns that can exceed 8 pounds, this platform maintains structural integrity while keeping weight manageable for extended use. The gas-operated system cycles reliably across different shell types and loads, from light target rounds to heavy tactical ammunition.

Key Features

• Semi-automatic gas operation handles 2¾" and 3" shells reliably
• Black anodized aluminum receiver reduces weight while maintaining strength
• 18.5-inch black steel barrel optimized for tactical applications
• 5+1 capacity provides adequate firepower for defensive scenarios
• Fixed synthetic stock offers consistent length of pull and durability
• Picatinny rail system accommodates optics and accessories
• Threaded barrel accepts choke tubes for versatility

Field performance demonstrates consistent cycling across various ammunition weights and manufacturers. The 18.5-inch barrel generates sufficient velocity for defensive loads while remaining compact enough for close-quarters maneuvering. Weather-resistant finishes protect against corrosion in humid environments, while the synthetic furniture withstands impact and temperature extremes better than traditional wood stocks.

Technical Specs

• Gauge: 12 gauge, 3-inch chamber capability
• Action: Semi-automatic, gas-operated
• Capacity: 5+1 rounds
• Barrel: 18.5 inches, black steel construction
• Receiver: Black anodized aluminum
• Stock: Fixed synthetic, black finish
• Overall Length: Approximately 38.5 inches
• Weight: Approximately 6.8 pounds
• Choke: Accepts standard choke tubes
• Safety: Cross-bolt trigger guard safety

The GF12HMRB MKX3 addresses the need for a reliable, lightweight semi-automatic shotgun without the premium price of established brands. Current inventory levels make this an opportune time to secure this versatile platform before supply constraints affect availability.