Description
The SIG516 G3 is a premium piston-driven AR-15 platform rifle engineered by SIG Sauer. It stands out with its robust, short-stroke gas piston system that reduces heat and fouling in the receiver, enhancing reliability. The rifle features a cold hammer-forged chrome-lined barrel, a monolithic top rail for optics, and a durable Mil-Spec hard-coat anodized finish on its aluminum receiver, ensuring long-term performance and accessory compatibility.
Key Features
- Short-stroke gas piston operating system for cleaner, cooler operation
- Cold hammer-forged, chrome-lined 16-inch barrel for exceptional accuracy and longevity
- Monolithic SIG M400 upper receiver with full-length Picatinny rail
- Four-position adjustable gas block for reliable cycling with various ammunition
- Includes SIG Sauer’s enhanced two-stage match trigger
Specifications
| Caliber / Type | 5.56 NATO / Piston-Driven Rifle |
|---|---|
| Material | 7075-T6 Aluminum Receiver, Steel Barrel |
| Finish | Mil-Spec Hard Coat Anodized |
| Compatibility | Standard AR-15/M4 parts and magazines |
| Weight | 7.7 lbs |
The SIG516 G3’s piston system directly addresses the primary weakness of direct impingement ARs: carbon and heat buildup. By diverting gas to a piston above the barrel, the action stays cleaner and cooler, which is critical for sustained fire. Chambered in 5.56 NATO, it reliably cycles a wide range of ammunition, making it a dependable choice for duty, defense, and demanding range use.
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