Ruger's AR-556 is made from 7075-T6 hard-coat anodized aluminum forgings, shot-peened and proof-tested 9310 steel bolt, and 8620 steel bolt carrier. Its barrel nut and delta ring allow easy, one-person service of the heat-resistant glass-filled nylon handguard. The design accepts most standard carbine-length handguards. Handguards are made from heat-resistant glass-filled nylon for shooting comfort and durability. The gas block is located at a carbine-length (M4) position for improved balance and handling. Serrations on the angled face of the gas block provide a low-glare surface. A single-stage trigger provides durable and reliable fire control. Rapid Deploy folding rear sight provides windage adjustability and pairs with the A2-style, F-height, elevation-adjustable front sight for a solid, reliable aiming system. The AR-556 also features a cold hammer-forged alloy barrel and ergonomic pistol grip with an extended trigger reach for more precise trigger control. Included is a front sight tool.
- Action: Semi-Auto
- Caliber: 5.56x45mm NATO
- Barrel Length: 16.10"
- Capacity: 10+1
- Trigger: Single-Stage
- Safety: Lever
- OAL: 32.25"- 35.50"
- Weight: 6.70 lbs
- Stock Description: 6 Position
- Metal Finish: Black Hardcoat Anodized
- Muzzle: Flash Suppressor
- Receiver Material: 7075-T6 Aluminum
- Sights: Adjustable Front & Rear
- Barrel Description: Cold Hammer Forged
- Twist: 1:8"
- Barrel Length Range: 16" to 16.99"
- Weight Range: 6 lbs to 6.99 lbs
- Hand: Right
- Stock Finish Group: Black
- Metal Finish Group: Blued/Black