Geissele Super Duty MOD1 5.56 NATO 16-inch Black

About this product

The Geissele Super Duty MOD1 is a purpose-built 5.56 NATO modern sporting rifle configured around precision components and durable construction. This 16-inch rifle pairs a cold hammer-forged, chrome-lined barrel with Geissele’s MK16 Super Modular Rail and a HUXWRX Flash Hider-QD muzzle device to provide a stable platform for optics and accessories. Key system upgrades include the SSA-E X two-stage trigger, a Reliability Enhanced Bolt Carrier Group, and a Super Duty lower machined from 7075-T6 aluminum. The package is completed with a B5 Enhanced SOPMOD stock and Geissele’s Super-42 buffer tuning for reliable, consistent operation.

Key Specifications

• Chambering is .223 Rem/5.56 NATO for common 5.56mm ammunition compatibility.
• The barrel measures 16 inches and is cold hammer-forged with a chrome-lined bore.
• The muzzle is fitted with a HUXWRX Flash Hider-QD muzzle device.
• The rifling twist rate is 1:7 to stabilize a wide range of projectiles.
• Action type is Semi-Auto for rapid follow-up operation.
• Magazine capacity is listed as 30 + 1 with removable magazine type.
• The trigger is a SSA-E X with Lightning Bow two-stage design.
• Empty weight is approximately 9.20 lbs for a well-balanced feel.
• The lower receiver is machined from 7075-T6 aluminum and the finish is anodized black.
• The stock is a B5 Enhanced SOPMOD constructed with polymer components.

Built around proven materials and attention to detail, the Super Duty MOD1 combines a refined trigger system, a robust bolt carrier group, and a modular rail to support a wide range of mission profiles from precision shooting to technical field use. Its component selection and construction emphasize durability, repeatable performance, and ergonomic handling, making it a practical choice for shooters who prioritize accuracy, reliability, and a refined controls layout.