The Ruger AR-556 is ready to go out of the box with its adjustable Ruger Rapid Deploy folding rear sight and 30 round M16-pattern magazine. All you need to do is add ammo. The Ruger features a 16.1" cold-hammer-forged barrel with 1:8" rifling, making it perfect for 35 to 77 grain ammunition. The AR-556 comes with a mil-spec diameter buffer tube and six-position telescoping M4 style buttstock, allowing it to fit any shooter of any stature and any amount of clothing or gear. The standard enlarged trigger guard makes shooting with gloves easier, while the ergonomic Rugerpistol grip provides a longer trigger reach for optimal finger position. 

The Ruger AR-556 is an excellent choice for home defense, duty or competition use, as well as small game hunting. It is not wonder that the Ruger AR-556 makes our list of recommended, and the best selling, AR-15s. 

Ruger AR-556 Semi Auto Rifle Specifications and Features:

• Ruger 8500 

• AR-15 Semi Automatic Rifle 

• 5.56 NATO caliber(accepts .223 Remington) 

• 30 Round standard AR-15 magazine 

• 7075-T6 Aluminum forgings 

• 16.1" Cold Hammer Forged Barrel 

• Medium contour barrel 

• M4 feed ramps 

• Matte black oxide finish 

• 1:8" Twist rifling 

• Muzzle threaded 1/2"-28 tpi 

• Ruger flash suppressor 

• 9310 Alloy steel, shot peened and pressure tested bolt 

• Carbine length gas system 

• Milled gas block 

• QD sling swivel socket on gas block 

• Bayonet lug 

• Serrated, low-glare, A2-style, F-height front sight 

• Front sight tool included 

• Barrel Nut and Delta Ring are designed for one person handguard removal and installation 

• Mil-Spec diameter receiver extension 

• Six Position Collapsible Stock 

• Ergonomic pistol grip with extended reach 

• Enlarged trigger guard 

• Single-stage Trigger 

• Overall length 35.5" 

• Weight 6.5 lbs 

• Black