Ruger AR-556 5.56 NATO 16" - AR-15 Rifle

Built to work and priced to own, the Ruger AR-556 5.56 NATO 16" brings dependable 5.56 NATO performance to the AR-15 platform without the premium cost of boutique manufacturers or the compromises of budget builds.

A semi-automatic AR-15 rifle chambered in 5.56 NATO, the Ruger AR-556 5.56 NATO 16" combines carbine-length direct impingement operation with standard AR-15 architecture for straightforward reliability.

Reliable Function: A proven carbine-length direct impingement operating system cycles a wide range of 5.56 NATO ammunition reliably — the foundation of any dependable AR-15.

Practical Barrel Length: The 16" barrel strikes a practical balance between velocity, maneuverability, and overall weight — a versatile choice for both defensive and recreational use.

Full Aftermarket Compatibility: Standard AR-15 architecture means the full range of aftermarket components, optics, and accessories are available — configure this rifle exactly how you want it.

Durable Construction: Quality materials and a durable finish ensure this platform holds up under regular range use and long-term storage without degrading function or accuracy.

• Caliber: 5.56 NATO
• Barrel Length: 16"
• Barrel Twist: 1:8"
• Gas System: Carbine-Length Direct Impingement
• Handguard: Picatinny Quad Rail
• Muzzle Threading: 1/2x28
• Magazine Capacity: 30-Round
• Finish: Type III Hardcoat Anodized
• Origin: Made in the USA

Fully compatible with standard AR-15 lower receivers and STANAG-pattern 5.56 NATO magazines. Works with mil-spec carbine buffer systems, standard lower parts kits, and the broad ecosystem of AR-15 aftermarket accessories.

The upper and lower receivers are constructed from 7075-T6 with a Type III Hardcoat Anodized finish — a durable combination that resists corrosion and maintains tight tolerances over an extended service life.

Well-suited for home defense, recreational target shooting, and competitive carbine matches. A natural choice for shooters building a versatile general-purpose AR-15.

Ruger has manufactured quality American-made firearms for over 70 years. Their AR-556 lineup provides proven semi-automatic performance backed by Ruger's reputation for reliable, no-nonsense firearms. Made in the USA.