Geissele Super Duty MOD1 5.56 NATO 16″ Heavy Barrel

About this product

The Geissele Super Duty MOD1 is built around a cold-hammer-forged, chrome-lined heavy barrel intended to deliver sustained accuracy and long-term durability. This MOD1 configuration pairs a heavy threaded 16″ barrel with Geissele’s in-house Nanoweapon-coated bolt carrier group and HUXWRX flash hider for enhanced corrosion resistance and reliability. Ergonomics and control are addressed with the SSA-E X two-stage trigger, B5 Enhanced SOPMOD stock, A17 grip, ambidextrous safety, and an MK16 rail for accessory mounting. The rifle ships without a magazine and includes QD sling provisions and stainless steel QD inserts on the rail.

Key Specifications

• The weight is 7.60 lbs.
• The barrel length is 16″.
• The caliber is .223 REM/5.56 NATO.
• The capacity is No Magazine.
• The muzzle device is a HUXWRX Flash Hider.
• The rate of twist is 1:7″.
• The trigger is SSA-E X w/Lightning Bolt.
• The stock is a B5 Enhanced SOPMOD (Black).
• The overall length is 36.88″.
• The safety is Ambidextrous.

With its heavy-profile, cold-hammer-forged barrel and durable, reliability-focused components, the Super Duty MOD1 is suited for demanding use where sustained accuracy and robust operation matter. The combination of a two-stage SSA-E X trigger, MK16 rail, and rugged chassis elements makes this rifle a practical choice for precision-oriented shooters and those requiring a dependable, feature-rich platform.

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