GForce Arms MKX3 Hammer 12GA 18.5in 5+1 Black

About this product

The GForce Arms MKX3 Hammer is a 12 gauge AR-style semi-automatic shotgun built around a black anodized aluminum receiver and a 4140 steel barrel. It pairs a fixed black synthetic stock and pop-up polymer sights with an 18.5in barrel for compact handling. The design accepts an MKA1919-style magazine and ships with one 5-round magazine and a set of Benelli-compatible chokes.

Key Specifications

• The caliber is 12 Gauge.
• The action is Semi-Auto.
• The barrel measures 18.5 inches for a compact overall length.
• The capacity is 5+1.
• The magazine type is an MKA1919-style detachable magazine and one magazine is included.
• The barrel material/finish is 4140 steel with a black finish.
• The receiver is made from aluminum alloy with a black anodized finish.
• The stock is a fixed black synthetic design.
• The sights are pop-up polymer sights.
• Chokes included are Cylinder, Modified, and Full (Benelli Mobil).

Designed as a practical AR-style 12-gauge platform, the MKX3 Hammer offers familiar ergonomics, simple magazine-fed operation, and common accessory compatibility. Its combination of durable materials, compact profile, and included magazine and choke set make it a solid option for shooters seeking a modern, reliable shotgun for range use, training, or defensive readiness.