Geissele Automatics Super Duty 5.56 NATO 16″ – AR-15 Rifle
$2,375.00
Mil-spec is where the Geissele Automatics Super Duty 5.56 NATO 16″ starts, not where it stops. Chambered in 5.56 NATO and built with components selected for performance rather than cost, this is an AR-15 that earns its price.
Description
Mil-spec is where the Geissele Automatics Super Duty 5.56 NATO 16″ starts, not where it stops. Chambered in 5.56 NATO and built with components selected for performance rather than cost, this is an AR-15 that earns its price.
The Geissele Automatics Super Duty 5.56 NATO 16″ is a semi-automatic AR-15 rifle chambered in 5.56 NATO, built around direct impingement operation for reliable cycling on the AR-15 platform.
Built Beyond Mil-Spec: Mil-spec is the minimum acceptable standard; this 5.56 NATO AR-15 rifle exceeds it throughout. Components are selected for the tightest tolerances and best available materials, not the lowest cost.
Consistent Performance Under Pressure: Reliability when conditions are bad, ammunition is dirty, and the rifle is hot is what separates professional-grade platforms from recreational ones. This rifle delivers that consistency.
Match-Accurate Architecture: Cold hammer forged or precision button-rifled barrels, hand-fitted components, and proper headspace ensure accuracy that outlasts most optics.
| Specification | Value |
|---|---|
| Accessory Attachment | M-LOK |
| Action | Semi-Auto |
| Barrel Coating | Manganese Phosphate |
| Barrel Contour | Geissele |
| Barrel Length | 16 |
| Barrel Lining | Manganese Phosphate |
| Brand | Geissele Automatics |
| Caliber Gauge | 5.56 NATO |
| Color | Brown |
| Gas System Length | Proprietary |
| Gas System Type | Direct Impingement |
| Handguard | 15 in Freefloat Rail |
| Model | Super Duty |
| Muzzle Device | Flash Hider |
| Thread Pattern | 1/2 X 28 |
| Twist Rate | 1:7 |








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