Ruger AR-556 5.56 NATO Semi-Auto Rifle, 16 in Cold Hammer-Forged Barrel, 1:8 Twist, Threaded 1/2x28, 2018 Production — Very Good
This 2018 Ruger AR-556 stands out with a cold hammer-forged 16-inch 4140 chrome-moly steel barrel, a 1:8 twist, and factory threading at 1/2x28 with an A2-style flash suppressor. It features a carbine-length gas system, a flat-top upper with Picatinny rail and dust cover, and a proven AR-15 direct-impingement action. Made at Ruger’s Mayodan, North Carolina facility, it comes in very good condition with an excellent bore and includes two 30-round magazines and one 20-round magazine.
Condition
Overall Condition: Very good condition, showing only light, superficial signs of prior handling or use.
Bore Overall Condition: Excellent - Clean, mirror finish, no signs of wear.
Bore Rifling: Excellent Rifling - Sharp lands and grooves.
Specific Condition Notes: This firearm is in great shape overall, with only minor, superficial scratches and blemishes from light handling.
What’s Included
- Three magazines: two 30-round and one 20-round (mix of Magpul PMAG polymer and metal AR-15 magazines)
The 16-inch barrel is cold hammer-forged from 4140 chrome-moly steel for durability and consistency, marked with the factory rollmark "5.56 NATO 1-8." It is threaded 1/2x28 and fitted with an A2-style birdcage flash suppressor. A carbine-length gas system supports reliable cycling with standard 5.56 NATO ammunition.
The rifle uses a semi-automatic, direct-impingement operating system on the AR-15 platform. Both upper and lower receivers are 7075-T6 aluminum with a Type III hard-coat anodized finish. The flat-top upper includes a Picatinny rail and an ejection-port dust cover for service-ready function.
Sighting equipment includes an A2-style fixed front sight on an "H"-stamped gas block and Ruger’s Rapid Deploy folding rear sight. Furniture consists of two-piece ribbed carbine handguards made from glass-filled polymer with a Ruger medallion and a knurled delta ring with a single-piece triangular front handguard cap.
Overall length is approximately 32.25 to 35.5 inches with an unloaded weight of about 6.5 pounds. Capacity is 30+1 rounds, and controls include a manual safety. This rifle was manufactured in the United States at Ruger’s Mayodan, North Carolina facility in 2018.