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. This model has a black Magpul MOE six-position buttstock, Magpul MOE M-LOK handguard, and a Magpul PMAG.
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| Twist: | 1:8" |
| Handguards: | Magpul M-LOK |
| Muzzle: | Flash Suppressor |
| Stock Description: | Magpul |
| Grips: | Ergonomic Pistol |
| Length of Pull: | 10.25"-13.50" |
| Stock Material: | Synthetic |
| Safety: | Thumb |
| Sights: | Adj Front & Rear |
| Model: | AR-556 |
| Max Capacity: | 30 |
| OAL: | 32.25"- 35.50" |
| Operating System: | Direct Impingement |
| Metal Finish Group: | Blued/Black |
| Action: | Semi-Auto |
| Caliber: | 5.56x45mm NATO |
| Weight Range: | 6 lbs to 6.99 lbs |
| Weight: | 6.50 lbs |
| Gun Platform: | AR-Style |
| Barrel Description: | Steel |
| Receiver Finish: | Black Hard Coat Anodized |
| Barrel Finish: | Matte Black Oxide |
| Capacity: | 30+1 |
| Stock Finish Group: | Black |
| Barrel Length Range: | 16" to 16.99" |
| Magazine Type: | AR-15 |
| Stock Finish: | Black |
| Trigger: | Single-Stage |
| Receiver Material: | 7075-T6 Aluminum |
| Barrel Length: | 16.10" |
| Thread Pattern: | 1/2"x28 |
| Hand: | Right Hand |
