Ruger Ar 556 300 Aac Blackout 16.10 inch 30 round Hardcoat Anodized 7075 T6

The Ruger AR-556 300 Blackout is a rugged semi-auto rifle in Ruger's AR series built for hunting, suppressed subsonic applications, home defense, and hard-use range work, featuring a heavy-contour 16.10" cold hammer-forged 4140 chrome-moly barrel with 1:7" twist and five grooves for consistent accuracy with both supersonic and subsonic 300 AAC Blackout loads, a Type III hard-coat anodized 7075-T6 aluminum flat top upper and lower that resist corrosion and wear, and an 11" free-float aluminum handguard with Magpul M-LOK slots at 3, 6 and 9 o—clock for lightweight accessory mounting without affecting barrel harmonics. The optics-ready Picatinny rail accepts red dots or magnified scopes, while the single-stage trigger, enlarged trigger guard for gloved use, ergonomic pistol grip, and six-position M4-style collapsible stock with Mil-Spec buffer tube allow fast, repeatable shooting and customizable length of pull from 33" to 36.25" overall. Reliability features include a shot-peened, proof-tested 9310 steel bolt, 8620 steel carrier with chrome-plated interior and staked gas key, M4 feed ramps and a matte black finish to reduce glare; with a 30+1 capacity and 5/8"-24 thread pattern, this AR-556 300 BLK balances duty-grade durability and practical versatility for tactical, hunting, and recreational shooters.