SIG SAUER R516G3556N16BBRZ 516 G3 5.56MM 30+1 16" BBL THREADED BRONZE for sale

Guns International #: 103545958 | Seller's Inventory #: R516G3-556N-16B-BRZ

Categories: Sig Sauer Rifles | AR15 Rifles

SIG SAUER R516G3556N16BBRZ 516 G3 5.56MM 30+1 16

1 of 12

See all listings by
Garys Gun Shop SD Tell a friend

Email Seller Print this listing FFL Transfers Near Me

Categories:
Sig Sauer Rifles | AR15 Rifles

SIG SAUER R516G3556N16BBRZ 516 G3 5.56MM 30+1 16" BBL THREADED BRONZE

Description:
The Sig Sauer SIG516 G3 (R516G3556N16BBRZ) is a 5.56 NATO semi-automatic piston-driven rifle built for sport shooters, duty use, and serious range training who want a battle-tested modern sporting rifle with a standout Bronze Cerakote finish and the reliability of a short-stroke piston system.
Key Features

Part number: R516G3556N16BBRZ
Caliber: 5.56 NATO, also accepts .223 Remington
Capacity: 30+1 rounds, includes one 30-round AR-15 polymer magazine
Barrel: 16 inch cold hammer forged steel, 1:7 twist rate
Barrel threading: 1/2-28 tpi tapered shoulder, compatible with standard AR-15 muzzle devices
Muzzle device: Sig Flash Hider-Compensator included
Stock: 6-position Magpul DT adjustable stock
Grip: AR-compatible reduced-angle grip
Handguard: Free-floating M-LOK with Picatinny rail section
Receiver finish: Bronze Cerakote
Operating system: Short-stroke piston with 3-position adjustable gas system
Trigger: Sig Matchlite DUO curved trigger
Controls: Fully ambidextrous safety, bolt catch, bolt release, charging handle, and magazine catch
Charging handle: Rear and side non-reciprocating
Overall length: 36.5 inches extended, 33 inches collapsed
Overall width: 3.3 inches
Height: 7.8 inches
Weight: 7 lbs 11 oz
Forward assist: Yes
Action: Semi-automatic

Special Features

The short-stroke piston operating system keeps propellant gases out of the receiver and bolt carrier group, which reduces heat buildup and carbon fouling compared to a direct impingement design.
The 3-position adjustable gas system lets you tune the rifle's cycling to match different ammunition loads or to run suppressed without over-cycling the action.
Cold hammer forging compresses the barrel steel during manufacturing, producing a harder bore surface that extends barrel life and maintains consistent accuracy over a higher round count.
Steel-reinforced components at the cam path and feed ramp address the highest-wear areas in the action, giving the G3 a measurable durability advantage over receivers without reinforced inserts.
The rear and side non-reciprocating charging handle operates independently of the bolt carrier group, allowing you to charge or clear the rifle from either side without your support hand leaving the handguard.
Full ambidextrous controls from the factory, including the bolt catch and magazine release, mean no aftermarket modification is needed for left-handed shooters.
The Bronze Cerakote receiver finish is corrosion-resistant, scratch-resistant, and sets the R516G3556N16BBRZ apart visually from standard black configurations in the G3 lineup.
The free-floating M-LOK handguard keeps the barrel completely isolated from sling, bipod, or accessory pressure, protecting accuracy potential at longer distances.

Practical Benefits

The 6-position Magpul DT stock adjusts to fit a wide range of shooter builds, making the Sig Sauer SIG516 G3 (R516G3556N16BBRZ) a practical fit for adult shooters of different sizes without swapping components.
The 1:7 twist rate stabilizes a full spectrum of 5.56 NATO and .223 Remington bullet weights from 55-grain through 77-grain, giving you flexibility to run practice ammunition at the range and heavier loads in the field.
The M-LOK handguard gives you a clean, low-profile platform to mount lights, lasers, vertical grips, or a bipod without adding bulk where you do not need it.
The threaded 1/2-28 barrel makes the rifle immediately compatible with suppressors and the full range of standard AR-15 muzzle devices, with no additional machining required.
Whether you are running drills at the range, competing in 3-gun events, or building a suppressed 5.56 setup, the piston system and adjustable gas block give your rifle the flexibility to perform across all of those roles without tuning issues.
If you want a 5.56 NATO piston rifle that combines proven durability, full ambidextrous control, and a finish that stands out on the rack and in the field, this platform delivers all of it without compromise.

The Sig Sauer SIG516 G3 (R516G3556N16BBRZ) in 5.56 NATO is a dependable option for the serious sport shooter or duty-minded buyer who demands a piston-driven modern sporting rifle built to run hard and last.

SHIPPING TO AK WILL BE EXTRA

Rifle Caliber: 5.56x45mm NATO
Manufacturer: SIG SAUER
Model: SIG516 G3
Barrel Length: 16
Caliber Info: 5.56MM
Condition: NEW
Barrel Type: THREADED

Price: $2,099.99
Shipping: $50.00

See all listings by
Garys Gun Shop SD Tell a friend

Email Seller Print this listing FFL Transfers Near Me

Contact Seller

See all listings by
Garys Gun Shop SD Tell a friend

Email Seller Print this listing FFL Transfers Near Me

Contact Seller

Guns International Advertising Policy
GunsInternational.com is the #1 Gun Classified website that brings gun buyers and gun brokers or sellers together through classified advertising of guns, gun related items and services for sale online. If you are looking to buy guns online or sell guns online, you have come to the right place. GunsInternational.com gun classifieds currently have over 200,000 guns for sale online by numerous dealers and collectors alike. Guns International makes no representation or warranty as to the accuracy of the information contained in the gun classifieds, gun parts or gun services classifieds listings. Buyers and sellers are required to know and comply with all applicable local, state, federal and international firearm laws.