Ruger AR-556 Features The Ruger AR 556 is a versatile sporting rifle designed to meet all of your needs. This rifle offers improved balance and handling with many points of adjustment to accommodate any shooter. This Ruger AR 15 is durable while still being comfortable enough for all-day range use. The 16.1-inch medium contour barrel is cold hammer forged for exceptional precision, accuracy, longevity and easy cleaning. This Ruger AR-556 semi-automatic rifle is made from forged aerospace-grade 7075-T6 aluminum. The hard coat anodized, flattop upper receiver includes a forward assist, dust cover and brass deflector, while the Magpul M-Lok handguards are made from heat-resistant glass-filled nylon. It also has a bolt machined from 9310 alloy steel, single-stage trigger, chrome-plated bolt carrier with a matte black oxide finish on the exterior. The AR-556 also utilizes a heavy contour, cold hammer-forged barrel and ergonomic pistol grip. Ruger AR-556 Specifications Family: AR-556 Rifle Series Model: AR-556 Type: Rifle Action: Semi-Auto Finish: Black Hard Coat Anodized Stock: Collapsible / Folding Stock Stock: Six-position Telescoping Special Feature: Threaded Barrel Model Weight: 6.7 lbs. Caliber: 223 Rem | 5.56 NATO Capacity: 30 1 # Of Mags: 1 Magazine Desc: 30 Rd. Magpul PMAG Barrel: 16.1″ Overall Length: 32.25″ – 35.50″ Rate-of-twist: 1-in-8 Sights: None Additional Info: Full Length Picatinny Rail Additional Info: Single-stage Trigger Additional Info: 11″ Magpul M-LOK Handguard GrabAGun stocks the AR15, AR10, and other modern sporting rifles. This rifle 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.