Ruger AR-556 Standard 5.56mm NATO Semi-Auto Rifle, 16.1" Barrel, 30+1
The Ruger AR-556 Standard (Model 8500) combines Ruger’s cold-hammer-forged 4140 chrome-moly steel barrel with a direct-impingement action, giving shooters a dependable, U.S-built AR-15 platform. A 1:8" twist stabilizes a wide range of bullet weights, while the pinned A2 front sight and Ruger Rapid Deploy rear sight deliver out-of-the-box accuracy. Ruger manufactures this rifle in Mayodan, North Carolina, ensuring full domestic production quality.
Condition
Overall Condition: Very good condition, showing only light, superficial signs of prior handling or use.
Bore Condition: Excellent - Clean, mirror finish, no signs of wear.
Bore Rifling: Excellent Rifling - Sharp lands and grooves.
Specific Condition Notes: The exterior shows a few minor and purely cosmetic scratches and blemishes. The bore remains clean and shiny.
What’s Included
- Ruger factory cardboard rifle box
- 1x 30-round Magpul PMAG Gen M3 polymer magazine
This AR-556 features a 16.1" medium-contour barrel threaded 1/2-28 for easy muzzle device or suppressor installation. The gas block includes a bayonet lug and a QD sling socket, expanding mounting options without extra parts.
The 7075-T6 aluminum upper and lower receivers wear a Type III hard-coat anodized finish for durability. Ruger’s proprietary delta ring allows tool-less removal of the two-piece M4 polymer handguards, making maintenance and upgrades straightforward.
A six-position telescoping synthetic stock and polymer pistol grip let shooters tailor length of pull and handling to personal preference. The rifle ships with an installed A2 front sight post and flip-up rear aperture, so it is ready for range use the moment it leaves the box.
At 30+1 rounds of 5.56mm NATO, this full-size, direct-impingement rifle offers the capacity and familiar controls AR enthusiasts expect, all with Ruger’s reputation for reliable manufacturing.