Ruger AR-556 Features The Ruger 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. This Ruger AR 15 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. The milled gas block is located at a carbine length (M4) position for improved balance and handling. Multiple attachment points include a QD socket and bayonet lug, for many sling and accessory mounting options. Serrations on the angled face of the gas block provide a low glare surface. The handguards are made from heat-resistant glass-filled nylon for shooting comfort and durability. Product features The front sight post is elevation adjustable, and a front sight tool is included. The A-2 Style F-Height allows co-witness with many optics. The Ruger Rapid Deploy folding rear sight provides windage adjustability and is a solid, reliable aiming system when coupled with the elevation adjustable front sight. The rear sight can be folded out of the way to make room for optics but can be instantly redeployed if needed. The six-position telescoping M4-style buttstock and Mil-Spec buffer tube allow the rifle to be properly sized for different shooters, or varying levels of outerwear or defensive gear. The 16.1 inch medium contour barrel is cold hammer-forged providing ultra-precise rifling for exceptional accuracy, longevity and easy cleaning. The 1:8 twist rate stabilizes bullets from 35 to 77 grains and the 5.56 NATO chamber allows the use of both 5.56 NATO and .223 Rem. ammunition. M4 feed ramps provide improved operational reliability and the matte black oxide finish reduces glare and provides corrosion resistance. A Ruger flash suppressor is provided and the 1/2-28 threaded barrel allows for standard muzzle accessories to be installed. The ergonomic pistol grip features an extended trigger reach for more precise trigger control. The enlarged trigger guard is designed to allow for gloved shooting. The chrome-plated bolt carrier inside diameter and chrome-plated gas key inside diameter provide exceptional resistance to hot gases. The gas key is staked so that it will not loosen after extensive firing. A matte black oxide finish on the exterior of the bolt carrier provides corrosion resistance. Ruger AR-556 Specifications Brand: Ruger Category: Tactical Rifles Caliber: 5.56x45mm NATO Model: AR-556 Stock Finish Group: Black Capacity: 30+1 Stock Material: Synthetic Action: Semi-Auto OAL: 32.25″- 35.50″ Hand: Right Sights: Adjustable Front & Rear Barrel Finish: Matte Black Oxide Muzzle: Flash Suppressor Twist: 1:8″ Gun Platform: AR-Style Magazine Type: AR-15 Grips: Ergonomic Pistol Handguards: Magpul MOE M-LOK Receiver Material: 7075-T6 Aluminum Safety: Manual Thumb Thread Pattern: 1 / 2″-28 tpi Stock Description: Adjustable Magpul Barrel Description: Cold Hammer Forged Barrel Length: 16.10″ Length of Pull: 10.25″-13.50″ Max Capacity: 30 Receiver Finish: Black Hard Coat Anodized Trigger: Single-Stage Weight: 6.50 lbs Stock Finish: Black GrabAGun stocks the AR15, AR10, and other modern sporting rifles. The Ruger AR-556 is one example of popular guns offered in the extensive GrabAGun catalog. This AR 15 is capable of shooting 5.56 ammo and .223 ammo. Whether you are interested in AR rifles for hunting or a defensive carbine, find the right gun for you online at GrabAGun.com.