Ruger AR-556

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Ruger AR-556 Gun Stats

Ruger AR-556

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The Ruger AR556, like its more expensive cousin the SR556, is packed with features that fans of the Modern Sporting Rifle demand. The AR556 is direct impingement gas-operated with a 16-inch 1:8 hammer-forged barrel threaded 1/2x28. Also featured is a windage-adjustable rear flip-up sight, a six-position telescoping M4-style buttstock with a Mil-Spec buffer tube, M4 feed ramps, a matte Type III hard coat oxide finish, enlarged trigger guard, a chrome-plated bolt carrier, and an A2-style front post sight with elevation adjustment, a bayonet lug and a Q/D attachment socket. This rifle also comes with one 30-round Magpul PMAG. Specifications: Special Feature: Threaded Barrel Model Weight: 6.5 lbs. Rate-of-Twist: 1-in-8" Sights: Adjustable Ruger Rapid Deploy Additional Info: Flat Top M4 Design Additional Info: Milled F-Height Gas Block Additional Info: Improved Trigger Reach Grip

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Ruger AR-556 Specs

1 Brand

2 Category

Technical Data


.223 Remington (5.56x45mm NATO)








Type III Hard Coat Oxide Finish

Barrel Length

16.5 "


120 oz

Ruger AR-556 Features

The Ruger AR556 is built in a handful of configurations, but the majority of them use all but a few of the same parts.  These rifles are built on forged receivers and use an A3 style upper receiver.  Their 16 inch barrel has an M4 profile without the useless M203 cut and is paired with a carbine-length gas system.  Its internal parts can all be described as “mil-spec” and it is typically built with a carbine-style buffer tube.

Ruger AR-556 Ballistics

.223 Remington (5.56x45mm NATO) Ballistic Data
Range (Yards) Drop (inches) Velocity Energy Wind drift (inches) Time (milliseconds)
0 0 0 0 0 0
50 0 0 0 0 0
100 0 0 0 0 0
150 0 0 0 0 0
200 0 0 0 0 0
250 0 0 0 0 0
300 0 0 0 0 0
350 0 0 0 0 0
400 0 0 0 0 0
450 0 0 0 0 0
500 0 0 0 0 0

Ruger AR-556 Capacity

The Ruger AR556 is chambered in 5.56x45mmNATO (or .223 Remington when measured in freedom units) and accepts all AR15 pattern magazines.  This allows for capacities of 5, 10, 20, 30, and 40 rounds in the standard double-stack magazines and includes capacities of 60 and 100 rounds in the quad-stack and drum magazines.
The AR556, both in its more standard setups or in their NY and CA compliant configurations, offer the same level of mobility and handiness as any other 16 inch AR15 pattern rifle.  With an unloaded weight of 7.5 pounds, this rifle is easy to carry over long distances and its short length of 38 inches allows easy use in close-quarter environments.

Ruger AR-556 Mobility


Ruger AR-556 Ergonomics

The controls of the AR556 are familiar and basic.  Controls are set up in the factory for right-handed use.  The furniture can be set up in any configuration thanks to the modularity of this AR15 style design, including different grips, stocks, and handguards.

Ruger AR-556 Fit & Finish

The AR556 is a functional entry-level AR platform.  Everything is made to spec and the material quality ensures a very safe and reasonably accurate rifle, but there isn’t anything that allows it to stand out from the crowd.
Fit and Finish

Ruger AR-556 Comparisons

How much is a Ruger AR-556 worth?

In 2024 a new or used Ruger AR-556 value varies depending on supply and demand. In the last 12 months there is great demand for a Ruger AR-556 and most rifles. The Price for a Ruger AR-556 has increased in cost by $0.00 in 2024 compared to 2023.

Estimated New and Used Values for a Ruger AR-556 Values are based on a basic model with no options or colors.

Condition Trade-In Private Party Dealer
New In box $459.32 $600.64 $706.64
Excellent $423.98 $565.31 $635.98
Very Good $388.65 $565.31 $635.98
Good $353.32 $529.98 $600.64
Fair $247.32 $459.32 $565.31
Poor $176.66 $353.32 N/A

Gun Value Conditions explained:

New in box - 100% condition in unopened box. Excellent - 95%+ condition with or without box.

Very Good - 90% - 95% condition (all parts/finish should be original).

Good - 80-90% condition (all parts/finish should be original).

Fair - 30% - 80% condition, parts, and finish may or may not be original. Must function properly and shoot.

Poor - under 30% condition. Firearm has severe wear and tear, does not function, or is damaged.

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