Ruger AR-556 – Model 8529 – 5.56 NATO

Free-Float Rifle with M-LOK® Handguard

The Ruger AR-556 Model 8529 is chambered in 5.56 NATO and equipped with a free-floated 11" aluminum handguard featuring Magpul® M-LOK® accessory slots on multiple surfaces. Its cold hammer-forged 410mm barrel ensures excellent accuracy and durability.

Advanced Construction & Modularity

The flat top upper receiver with Picatinny rail allows for rapid mounting of optics. Built from 7075-T6 aluminum forgings, it houses a chrome-lined 9310 steel bolt and 8620 steel carrier with a staked and chrome-plated gas key, ensuring long service life and smooth cycling.

Ergonomics & Control

Featuring a single-stage trigger, extended trigger guard and a collapsible six-position M4-style stock, the rifle is highly adaptable. An ergonomic pistol grip with extended reach improves trigger control and comfort.

Technical Specifications

• Caliber: 5.56 NATO (.223 Rem. compatible)
• Barrel Length: 410mm
• Thread Pattern: 1/2"-28
• Twist: 1:8" RH
• Capacity: 30
• Weight: 3040g
• Overall Length: 820–902mm
• Length of Pull: 260–343mm
• Grooves: 5
• Material: 7075-T6 aluminum (receiver), alloy steel (barrel)
• Finish: Type III hard-coat anodized / matte black oxide
• Sights: None
• Stock: Collapsible, synthetic
• Handguard: 11" free-float with M-LOK® slots
• Includes: One 30-round Magpul® PMAG® magazine