GForce GF12HMRB MKX3 Hammer | 12ga 18.5in | 5+1

The GForce Arms MKX3 Hammer (MFG# GF12HMRB) is a 12 Gauge semi-automatic shotgun built with an AR-style control layout and an 18.50-inch barrel. The design pairs a black anodized aluminum receiver with a 4140 steel barrel and a tactical-style synthetic grip. The listing references both fixed synthetic and pop-up polymer stock configurations; please review the notes below for details.

Product Specifications

• The manufacturer is GForce Arms.
• The model and part number are MKX3 Hammer (GF12HMRB).
• The action is Semi-Auto.
• The caliber/gauge is 12 Gauge.
• The barrel measures 18.50 inches.
• The capacity is 5+1.
• The chamber size is 3 inches.
• The barrel material is 4140 steel.
• The receiver material is aluminum alloy with a black anodize finish.
• The product weight is listed as 8.20 lbs.
• The sighting system is pop up polymer sights.
• The primary magazine type is MKA 1919 and it includes one 5-round magazine.
• The choke threads are Benelli Mobil and chokes included are Cylinder, Modified, Full.
• The overall length is 37.50 inches.
• The UPC is 643477868256.

With an 18.50-inch barrel, AR-style ergonomics and a compact overall length, the MKX3 Hammer suits range work and competitive shotgun applications where compact handling and quick follow-up shots matter. Its aluminum receiver and 4140 steel barrel deliver a combination of light weight and durability for repeated use on the line.