Ruger AR-556 / Rock River Arms A2 Carry-Handle 5.56 NATO Semi-Automatic Rifle, 16-Inch, Threaded Barrel
This hybrid AR-15 pairs a Ruger AR-556 lower receiver with a Rock River Arms 16-inch A2 carry-handle upper, giving shooters a reliable mix of Ruger craftsmanship and Rock River accuracy. Built in 2021, the rifle offers full mil-spec parts compatibility, a hard-coat anodized 7075-T6 aluminum frame, and a chrome-moly barrel threaded 1/2-28 for muzzle devices. The omission of the dust cover is an intentional, weight-saving choice that also highlights the platform’s modularity.
Condition
Overall Condition: Good condition, showing some signs of prior use and handling.
Bore Condition: Good - Clean, well-maintained, minor wear marks.
Bore Rifling: Good Rifling - Intact, well-defined lands and grooves.
The rifle shows minor scratching, scuffing, and blemishing on exterior surfaces, with moderate wear around the castle nut and buffer tube.
What’s Included
- Ruger AR-556 / Rock River Arms A2 carry-handle rifle
- One 30-round alloy GI-style STANAG magazine
- Two 20-round alloy GI-style STANAG magazines
This build demonstrates the interchangeability of AR-15 components. The Ruger lower (serial number 859-64972) from Mayodan, NC, mates seamlessly with the Rock River Arms upper, delivering a carbine that retains full mil-spec functionality.
The 16-inch chrome-moly barrel features a 1:9 twist, phosphate finish, and standard bayonet lug. Its 1/2-28 threads accept flash hiders, brakes, or suppressor adapters, expanding customization options.
Classic A2 sights include an F-marked front post and an integral rear aperture in the carry handle, offering reliable, repeatable zero without batteries or optics.
A 6-position telescoping stock, A2 pistol grip, and carbine-length polymer handguards provide familiar ergonomics and quick length-of-pull adjustments. The rifle’s matte black hard-coat anodized finish resists scratches and corrosion, matching the rugged polymer furniture.