SIG Sauer 516 Gen3 – 5.56 NATO, 16", Bronze Cerakote (R516G3-556N-16B-BRZ)
The SIG516 G3 Bronze is SIG’s short-stroke piston AR in 5.56 NATO with a 16-inch cold-hammer-forged barrel and a Bronze Cerakote aluminum receiver set. Ambidextrous controls, rear-and-side charging handles, and a free-float M-LOK handguard round out the package. SIG Sauer part number R516G3-556N-16B-BRZ, UPC 798681740970.
This listing is the Bronze Cerakote 5.56 / 16" configuration only.
Short-Stroke Piston, Adjustable Gas
SIG runs a short-stroke piston with a 3-position adjustable gas system so you can tune for suppressed or unsuppressed use. The 16-inch CHF barrel is 1:7 twist, threaded 1/2x28, and ships with a SIG flash hider-compensator.
Controls and Furniture
- Fully ambidextrous controls
- Rear and side non-reciprocating charging handles
- Matchlite Duo curved trigger
- Free-floating M-LOK / Picatinny handguard
- 6-position Magpul DT stock and AR-compatible reduced-angle grip
- (1) 30-round polymer magazine included
SIG Sauer 516 Gen3 Bronze Specifications
| Manufacturer | SIG Sauer |
| Model | SIG516 G3 Bronze |
| Part Number | R516G3-556N-16B-BRZ |
| UPC | 798681740970 |
| Caliber | 5.56 NATO |
| Action | Semi-automatic, short-stroke piston |
| Barrel Length | 16" |
| Barrel | Cold hammer forged steel, nitride finish |
| Twist Rate | 1:7 |
| Muzzle Thread | 1/2"-28 |
| Muzzle Device | SIG flash hider-compensator |
| Gas System | 3-position adjustable |
| Receiver Finish | Bronze Cerakote |
| Handguard | Free-float M-LOK / Picatinny |
| Trigger | Matchlite Duo curved |
| Stock | 6-position Magpul DT |
| Magazine | (1) 30-round polymer |
| Overall Length | approx. 33"–36.5" |
| Weight | approx. 7.7 lb |
Frequently Asked Questions
Is this the Bronze finish SKU?
Yes — part R516G3-556N-16B-BRZ is the Bronze Cerakote 516 Gen3 in 5.56 / 16".
Piston or direct impingement?
Short-stroke piston with a 3-position adjustable gas block.
What magazine is included?
SIG lists one 30-round polymer magazine.
Does it have ambi controls?
Yes. SIG publishes fully ambidextrous controls plus rear and side charging handles.
Internal Reference:
R516G3-556N-16B-BRZ
Barcode:
798681740970
| Brand: Sig Sauer |
| Model: AR-15, SIG 516, SIG516 G3, Sig 516 |
| Caliber: 5.56mm |
| Firearm Action: Semi-auto |
| Color: Bronze |
| Barrel Length: 16" |
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This item cannot be shipped to the following locations due to legal or carrier restrictions:
Restriction Details
This product cannot be sold or shipped to your location due to magazine capacity restrictions. Magazine capacity cannot exceed 10rd. If you believe this to be incorrect or if you're exempt from the restriction, please contact us at 636-791-1655.
Affected States/Territories (10):
Restriction Details
Colorado prohibits magazines with a capacity exceeding 15rd. If you believe this is in error or if you are exempt from the restriction, please contact us at 636-791-1655.
Affected States/Territories (1):
Restriction Details
Vermont restricts rifle magazine capacity to 10rd. This exceeds the state's restricted capacity. If you believe this is in error or if you are exempt from the restriction, please contact us at 636-791-1655.