SIG 516 for Sale
Browse SIG 516 listings from verified sellers across the U.S. on GunsAmerica.
Quick Look
The SIG 516 was introduced by SIG Sauer as a piston-driven alternative to traditional direct impingement AR-15 rifles. Built for enhanced reliability and durability, it was designed to meet the demands of law enforcement and military users. Though no longer in active production, it remains sought after on the used market for its rugged performance.
Why It's a Top Choice
- Short-stroke gas piston reduces fouling and heat
- Chrome-lined, cold hammer-forged barrel for longevity
- Four-position gas regulator for suppressor compatibility
- Full-length monolithic rail for optics and accessories
- Highly reliable under adverse conditions
Key Variants
SIG 516 Patrol
Ideal for civilian or LE duty use with its 16-inch barrel and ambi-controls.
SIG 516 Tactical
Geared toward high-performance users with upgraded furniture and faster handling.
SIG 516 SBR
A compact, NFA-regulated version favored for CQB setups or suppressed builds.
SIG 516 Gen 2
Includes enhancements like improved weight distribution and refined internals.
SIG 516 Carbon TS
Features lightweight components and carbon fiber handguard for competition or fast-moving roles.
Competitor Comparison Table
| Feature | Sig 516 | LWRC IC-SPR | Ruger SR-556 |
|---|---|---|---|
| MSRP | $1,800 (discontinued) | $2,300 | $1,500 |
| Capacity | 30+1 | 30+1 | 30+1 |
| Weight | 7.4 lbs | 7.0 lbs | 8.0 lbs |
| Optics-Ready | Yes | Yes | Yes |
| Trigger Type | Mil-spec | Enhanced | Mil-spec |
| Notable Pro | Excellent gas regulation | Lightweight and modular | Affordable piston option |
| Notable Con | Discontinued production | High price | Heavier than average |
Best Use Cases
- Self-defense
- Law enforcement/duty use
- Suppressor-ready builds
- Range training
- Firearm collection
FAQs
What is the SIG 516's gas system?
The SIG 516 uses a short-stroke gas piston system with a four-position adjustable gas block.
Can I mount optics on a SIG 516?
Yes, it features a full-length Picatinny top rail compatible with most modern optics.
How does the SIG 516 perform suppressed?
It runs reliably with suppressors due to its adjustable gas regulator for tuning backpressure.
Prefer nearby results? Toggle to search local listings.
Mossberg 590S Shockwave (51601)
$679.99
USED SIG SAUER P229 357 SIG
$649.99
Sign up for our newsletter
Frequently asked questions
What types of firearms does GunsAmerica offer online?
Are there any restrictions to buying legal firearms from GunsAmerica?
What are some of the best firearm companies available at GunsAmerica?
Can I sell my firearm to GunsAmerica?
How does GunsAmerica handle firearm shipping and transfers?
Who We Are
About
From the latest advancements in firearm technology to trusted essentials, GunsAmerica offers a comprehensive selection of gun accessories designed to enhance performance, reliability, and safety. Whether you need precision optics, durable stocks, high-capacity magazines, suppressors, or muzzle devices, our marketplace provides everything required to maintain, upgrade, and customize your firearms. We feature products from leading manufacturers, ensuring superior quality and compatibility across all firearm platforms. Our extensive inventory is built to support every shooter’s needs, from tactical applications and competitive shooting to hunting and everyday carry. At GunsAmerica, we are committed to delivering a seamless, secure shopping experience with competitive pricing, making it easier than ever to find the right accessories to optimize your firearms for any mission or environment.