Product Features & Specifications

Ruger 8537 AR-556 5.56x45mm NATO 10+1 16.10" Heavy Contour Barrel, Black Hard Coat Anodized 7075-T6 Aluminum Forgings, 6 Position Collapsible M4-Style Stock, Mil-Spec Buffer Tube, Optics Ready

Ruger's 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 handguards are made from heat-resistant glass-filled nylon.

It has a carbine-length, milled gas block with multiple attachment points for a QD socket, bayonet lug, and sling.Serrations on the angled face of the gas block provides a low-glare surface.

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, and patent-pending barrel nut and Delta ring for one person handguard removal and installation.