The AR-556: Ruger's Dependable MSR

by
posted on November 6, 2021
** When you buy products through the links on our site, we may earn a commission that supports NRA's mission to protect, preserve and defend the Second Amendment. **
Ar 556

On Sept. 29, 2014, Ruger introduced its AR-556. A press release at the launch explained the rifle is a “…semi-automatic, M4-style, direct impingement Modern Sporting Rifle. With all major components machined at Ruger’s Mayodan, N.C., facility, the AR-556 offers consumers an affordable, American-made Modern Sporting Rifle with the rugged reliability they have come to expect from Ruger.”

That year, one in which it was only available for three months, is the only one since that the AR-556 has not been in Gunbroker.com’s annual top-10 list of semi-automatic rifles—ranked by sales through the website. The continuing popularity speaks volumes about the quality, reliability and performance of the firearm.

Today there are four versions of the 5.56 mm NATO chambered carbines available direct from the factory, as well as a lower receiver only. All are black and the complete guns come with either basic handguards and buttstocks—most of them six-position adjustable—or Magpul MOE furniture. There’s even a pair of state-compliant versions, and MSRPs run from $959 to $1,099. The lower receiver comes in at $399.

Ruger also makes five different distributor-exclusive models, each wearing furniture in different colors. Turquoise, white, flat dark earth and OD green are available with the standard handguard and stock. Another version, in flat dark earth, comes with the Magpul furniture. MSRPs are determined by the distributor and not available on Ruger’s website.

The receivers are forged from 7075-T6 hard-coat anodized aluminum and the 9310 steel bolt is shot-peened and proof tested. The interior of the gas key and carrier are chrome plated.

All complete rifles ship with a 30-round magazine, with the exception of state compliant models, which ship with a 10-round version. The guns feature Ruger’s Rapid Deploy folding rear sight that is windage adjustable. Up front is an A2-style post.

Barrels measure 16.1", the gas block is located at the carbine-length position and rifling rate is 1:8". Barrels are threaded to accept muzzle devices, with the exception of one of the two state compliant models.

Latest

Chiappa Rhino Large Frame 01
Chiappa Rhino Large Frame 01

A Bigger Rhino: The Chiappa 60DS L-Frame In .44 Mag.

The Chiappa Rhino revolver design is "anything but ordinary," and for 2026, the company is upscaling the concept to handle the .44 Magnum cartridge.

Preview: Magpul MOE QD Bipod For M-Lok

Simple, inexpensive and supremely easy to use, the new MOE QD Bipod For M-Lok is Magpul’s fastest-mounting bipod model by far, as it takes only about five seconds for the practiced hand to securely affix it to an M-Lok-clad fore-end.

Gun Of The Week: Henry SPD HUSH

For its first design, Henry Repeating Arms' Special Products Division developed the HUSH, or the Henry Ultimate Suppressor Host. 

The Armed Citizen® Dec. 19, 2025

Read today's "The Armed Citizen" entry for real stories of law-abiding citizens, past and present, who used their firearms to save lives.

TriStar Arms Protégé X: A Pocket-Size Punch

Inspired by successful designs of the past, the TriStar Arms Protégé X is a pocket-size, M1911-style handgun chambered for the popular 9 mm cartridge.

Hornady Family Honored with Legacy Award

In October, the Hornady family was recognized by the Greater Grand Island Community Foundation for its contribution to the city that Hornady calls home.

Interests



Get the best of American Rifleman delivered to your inbox.