Sig Sauer 516 G3 AR-15 5.56 NATO 16" Threaded Barrel Rifle
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The Sig Sauer 516 G3 is a semi-automatic AR-15 platform rifle chambered in 5.56 NATO, featuring a 16-inch threaded barrel with 1/2x28 thread pattern. Built with a short-stroke gas piston system and adjustable gas block, this rifle delivers reliable cycling and enhanced durability in demanding conditions.
Constructed with a free-floating M-LOK handguard for lightweight accessory mounting and a 6-position adjustable Magpul stock for a customized fit. Ambidextrous controls allow comfortable operation for left and right-handed shooters. The rifle comes optic-ready with a Picatinny rail for easy red dot or optic mounting.
Finished in a matte black anodized coating over the aluminum receiver, this model includes one 10-round magazine and weighs approximately 10.5 pounds.
- Chambered in 5.56 NATO (also accepts .223 Remington)
- 16-inch barrel with 1/2x28 thread pattern
- Short-stroke gas piston system with adjustable gas block
- Free-floating M-LOK handguard
- 6-position adjustable Magpul stock with ambidextrous controls
- Optic-ready with Picatinny rail; no iron sights included
| MPN | R516G3-556N-16B-CP1-10 |
| UPC | 798681746125 |
| Brand | Sig Sauer |
| Model | 516 |
| Action | Semi-Auto |
| Finish | Black Anodized |
| Safety | Ambidextrous |
| Caliber | 5.56 NATO |
| Capacity | 10 Rounds |
| Barrel Length | 16" |
| Rate of Twist | 1:7" |
| Overall Length | 36" |
| Thread Pattern | 1/2x28 |
| Magazines Included | 1 |
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