Ruger AR-556 5.56 NATO Semi-Auto Rifle, 16.1 in Threaded Barrel, 1:8 RH Twist, Flat-Top Upper, 2021 Production
This 2021 Ruger AR-556 is an AR-15 platform carbine in excellent condition with a clean, mirror-bright bore. It features a 16.1 inch threaded barrel with a 1:8 RH twist, a flat-top upper with Picatinny rail, an A2-style fixed front sight base, and a Ruger flip-up rear aperture sight. It comes with the original factory box with serial-matched label and three magazines, and bears Mayodan, North Carolina receiver markings.
Condition
Overall Condition: Excellent condition, showing only faint signs of any prior use or handling.
Bore Condition: Excellent - Clean, mirror finish, no signs of wear.
Bore Rifling: Excellent Rifling - Sharp lands and grooves.
Specific Condition Notes: This rifle shows minimal evidence of prior use or handling. The bore is clean and shiny with a mirror-like finish.
What’s Included
- Original factory box with serial-matched label (photographed)
- Ruger flip-up rear sight (installed)
- 1x 30-round magazine
- 1x 20-round magazine
- 1x 10-round magazine
The 16.1 inch barrel is threaded and fitted with an A2 birdcage flash suppressor. A carbine-length gas system and a 1:8 RH twist support a wide range of 5.56mm NATO loads. A standard delta ring retains the carbine-length two-piece polymer handguard.
The flat-top upper receiver provides a Picatinny rail and includes a forward assist, case deflector, and ejection-port cover. The lower is marked AR-556. Receiver markings indicate Mayodan, North Carolina, and the aluminum receivers wear a matte black finish.
Sighting is via an A2-style fixed front sight base paired with a Ruger flip-up rear aperture. Ruger-branded polymer furniture includes a carbine-length handguard with Ruger medallion, a polymer pistol grip, and a 6-position telescoping stock with a 10 to 13.25 inch adjustable length of pull.
The rifle uses a semi-automatic, direct impingement action with a manual safety. Capacity is 30+1. Three magazines are included; the magazines shown include Magpul PMAG polymer and steel USGI-style examples.