Geissele Super Duty Mod 1 5.56 16" Rifle DDC - Semi-Auto AR-15

The Geissele Super Duty Mod 1 delivers precision-engineered performance in a battle-tested platform that exceeds mil-spec standards. This 5.56 NATO rifle combines Geissele's renowned trigger technology with their proprietary barrel and rail system for exceptional accuracy and reliability.

What Makes This Different

Geissele manufactures every critical component in-house, from the cold hammer-forged barrel to the precision-machined upper and lower receivers. The Super Duty Mod 1 features a 16-inch barrel with optimized gas port sizing and a proprietary bolt carrier group that reduces wear while maintaining consistent cycling. Unlike standard AR-15 platforms, this rifle includes Geissele's Super Semi-Automatic (SSA) trigger with a crisp 4.5-pound pull weight and minimal overtravel.

Key Features

• Cold hammer-forged 16-inch barrel with 1:7 twist rate for superior accuracy
• Desert Dirt Color (DDC) Cerakote finish provides corrosion resistance
• Super Semi-Automatic trigger with 4.5-pound pull weight
• 15-inch Super Modular Rail Mk16 with M-LOK attachment points
• Proprietary bolt carrier group with enhanced reliability coatings
• Ambidextrous charging handle for left and right-handed operation
• Super 42 braided wire buffer spring and H1 buffer system

The rifle maintains sub-MOA accuracy with match-grade ammunition while cycling reliably with standard 5.56 NATO and .223 Remington loads. The gas system operates smoothly in temperatures from -40°F to 140°F, making it suitable for competition shooting, tactical applications, and hunting scenarios. The DDC finish resists salt spray corrosion for 1,000+ hours in accelerated testing.

Technical Specs

• Caliber: 5.56 NATO/.223 Remington
• Barrel Length: 16 inches with 1:7 twist rate
• Overall Length: 32.75 inches (stock collapsed), 36.25 inches (extended)
• Weight: 7.2 pounds (unloaded)
• Rail System: 15-inch Super Modular Rail Mk16 M-LOK
• Finish: Desert Dirt Color (DDC) Cerakote
• Magazine Compatibility: Standard STANAG/AR-15 magazines
• Made in USA with lifetime warranty on manufacturing defects

This rifle represents Geissele's commitment to manufacturing excellence, with each component precision-machined to tolerances tighter than military specifications. The Super Duty Mod 1 ships ready for immediate use with premium components that typically require aftermarket upgrades on standard platforms.