Ruger SR-556 5.56 NATO Piston AR-15 with 16.12 in Cold Hammer-Forged, Chrome-Lined Barrel and Custom Multi-Tone Camouflage
This 2011 Ruger SR-556 pairs the model's short-stroke gas piston system with a custom multi-tone camouflage refinish and upgraded Magpul furniture. It features a 16.12-inch, cold hammer-forged, chrome-lined 41V45 steel barrel with a 1:9 twist, a free-float quad-rail handguard, and forged aluminum receivers. The rifle comes with two magazines and practical accessories installed.
Condition
Overall Condition: Good condition, showing some signs of prior use and handling.
Bore Overall Condition: Good - Clean, well-maintained, minor wear marks.
Bore Rifling: Good Rifling - Intact, well-defined lands and grooves.
Specific Condition Notes: The rifle is in good shape with minor scratches and blemishes. A previous owner applied a multi-tone camouflage refinish over the rifle. The bore is clean and shiny.
What’s Included
- Ruger SR-556 semi-automatic rifle with custom multi-tone camouflage refinish
- 1x 20-round Magpul PMAG polymer magazine
- 1x 30-round ProMag AR-15/M16 polymer magazine (one shown in retail packaging)
- Magpul ACS adjustable carbine stock (installed)
- Magpul pistol grip (installed)
- Picatinny rail cover panels on the handguard (installed)
- QD sling swivel (installed)
The SR-556 uses Ruger's short-stroke gas piston with an adjustable regulator. It is chambered in 5.56 NATO and built on the AR-15 platform with forged aluminum receivers. The model and crest markings are present on the lower, and the rifle was made in the USA.
The 16.12-inch barrel is cold hammer-forged from 41V45 steel and chrome-lined for durability. It has a 1:9 twist and a threaded muzzle with an open-ended three-prong flash hider. The barrel is rollmarked '5.56 NATO 1-9'.
A free-float quad-rail handguard provides a continuous top Picatinny rail over a flat-top upper receiver. No sights are installed, allowing the user to configure the rifle to their preference.
This example features a custom multi-tone camouflage refinish across the rifle, paired with a Magpul ACS adjustable stock and Magpul pistol grip. A QD sling swivel and rail cover panels are installed. The lower receiver is marked with the Ruger phoenix crest and 'RUGER NEWPORT, NH, USA', and the receiver is model-marked 'SR-556'. The SR-556 family was later discontinued, adding context for collectors of Ruger piston-driven AR variants.