The Ruger 8537 AR-556 is a versatile and reliable semi-automatic rifle designed for both tactical and recreational shooting. Crafted from aerospace-grade 7075-T6 aluminum forgings, this rifle boasts a hard-coat anodized, flat top upper receiver featuring a forward assist, dust cover, and brass deflector. The six-position telescoping M4-style buttstock and Mil-Spec buffer tube ensure the rifle can be properly sized for different shooters or varying levels of outerwear. The heavy contour, cold hammer-forged alloy barrel with a 1:8" twist rifling provides exceptional accuracy with bullets from 35 to 77 grains, while the M4 feed ramps and 5.56 NATO chamber allow the use of both 5.56 NATO and .223 Rem. ammunition. The barrel is finished with a matte black oxide to reduce glare and provide corrosion resistance. The free-float handguard features Magpul M-LOK accessory attachment slots along the 3:00, 6:00, and 9:00 positions, along with additional slots on the angled faces near the muzzle. The Picatinny rail on the flat top upper receiver facilitates easy attachment of magnified optics, red dots, or open sights. The single-stage trigger provides durable and reliable fire control, and the enlarged trigger guard allows gloved shooting in cold weather. Equipped with a Ruger flash suppressor and an ergonomic pistol grip featuring an extended trigger reach for precise control, this rifle is optics ready and includes one 10-round metal magazine. With its robust construction and versatile design, the Ruger 8537 AR-556 is ideal for both beginners and experienced shooters looking for a reliable and accurate firearm.