Ruger Ar-556 5.56x45mm Nato 16.1in 10+1 Hardcoat Anodized 7075-T6

The Ruger AR-556 (model 8537) is a rugged, firearms-grade 5.56x45mm NATO semi-auto rifle that blends the AR platform's proven ergonomics with Range-ready features for hunting, training, and defensive or competition use, and it requires an FFL transfer for sale. The 16.10" heavy contour cold hammer-forged barrel with 1:8" twist and 5.56 NATO chamber handles 35—77 grain bullets for reliable accuracy and feeding, while the 1/2"-28 threaded muzzle with A2-style flash hider helps control flash signature. Built on 7075-T6 hard coat anodized aluminum forgings with a flat-top upper receiver and chrome-plated, shot-peened bolt/bolt carrier components, the rifle is optics ready with a Picatinny rail and an 11" free-float M-LOK handguard for adding lights, bipods, or magnified optics. The single-stage Mil-Spec trigger, enlarged trigger guard for gloved shooting, ergonomic grip, six-position M4 collapsible stock, and Mil-Spec buffer tube let shooters dial length of pull from 10.25" to 13.50", keeping the 6.7 lb platform controllable and adaptable in the field or at the range. This AR-556 series rifle is suited to shooters seeking a durable, serviceable semi-auto chambered in 5.56 NATO with tactical accessory compatibility and trustworthy mechanicals.