Ruger AR-556 Rifle, 5.56 NATO, 16.10-Inch, Custom Marble Distressed

The Ruger AR-556 in 5.56 NATO/.223 Rem (brand part no. 8500 MODMBD) is a semi-automatic AR-15 built around a medium-contour, cold hammer-forged alloy barrel cut with a 1:8-inch twist, delivering exceptional accuracy across bullet weights from 35 to 77 grains. Ruger forges the receivers from 7075-T6 aluminum and pairs a shot-peened, proof-tested 9310 steel bolt with an 8620 steel bolt carrier, chrome-plated inside for durability. The rifle carries a Ruger Rapid Deploy adjustable rear sight with an A2-style F-height front sight, a matte black oxide barrel finish with a 1/2×28 Ruger flash suppressor, a single-stage trigger with an enlarged, glove-friendly trigger guard, a six-position telescoping M4-style stock, and a flat top upper with a forward assist and brass deflector, finished in a custom marble distressed Cerakote. It ships with one 30-round Magpul PMAG. Among AR-platform rifles in the AR rifles category, the AR-556 favors shooters who want a proven mil-spec-pattern rifle in a distinctive custom finish.

Key Specifications

• Chambered in 5.56 NATO, also accepts .223 Remington.
• Cut with a cold hammer-forged barrel at a 1:8-inch twist, 16.10 inches long.
• Forged from 7075-T6 aluminum with a chrome-plated 9310 steel bolt.
• Equipped with a Ruger Rapid Deploy adjustable rear sight and A2-style front sight.
• Finished with a matte black oxide barrel and a 1/2×28 Ruger flash suppressor.
• Runs a single-stage trigger with an enlarged trigger guard.
• Adjusts on a six-position telescoping M4-style stock.
• Ships with one 30-round Magpul PMAG.
• Weighs 6.5 pounds at 32.25 to 35.50 inches overall.
• Finished in custom marble distressed Cerakote.

Frequently Asked Questions

Can this rifle run both 5.56 and .223 ammunition? Yes, the 5.56 NATO chamber and M4 feed ramps handle both cartridges.

Does this rifle include a magazine? Yes, one 30-round Magpul PMAG ships with the rifle.

Buy the Ruger AR-556 Custom Marble Distressed

As soon as it’s ready to ship, a proven mil-spec-pattern rifle in a distinctive custom finish is exactly what the AR-556 delivers. Order it from our Lubbock, Texas gun shop for fast, insured shipping to your FFL.