Ruger 16" AR15 5.56 Adjustable Rapid Deploy Rear Sight Rifle, Black - 8500

The Ruger AR-556 is a standard gas impingement operated AR15 platform rifle featuring a milled gas block, located at a carbine-length (M4) position for improved balance and handling. Multiple attachment points include a QD socket and bayonet lug, for many sling and accessory mounting options. The AR-556 comes equipped with the Ruger Rapid Deploy folding rear sight which provides windage adjustability, and pairs with the elevation adjustable front sight for a solid, reliable aiming system. The six-position telescoping M4-style buttstock and Mil-Spec buffer tube allow the file to be properly sized for different shooters, or varying levels of outerware or defensive gear. Made from aerospace-grade 7075-T6 aluminum forging, the flattop upper receiver includes a forward assist, dust cover and brass deflector, and is Type III hard coat anodized for maximum durability. The medium contour cold hammer-forged barrel with ultra-precise rifling provides exceptional accuracy, longevity and easy cleaning. The 1:8" twist rate stabilizes bullets from 35 to 77 grains, and the 5.56 NATO chamber allows the use of both 5.56 NATO and .223 Rem. Ammunition. M4 feed ramps provide improved operational reliability, and the matte black oxide finish reduces glare and provides corrosion resistance. A RugerA(R) flash suppressor is provided, and the 1/2"-28 threaded barrel allows for standard muzzle accessories to be installed. Features:a Single-stage trigger provides durable and reliable fire control. The enlarged trigger guard is designed to allow gloved shootinga Ergonomic pistol grip features an extended trigger reach for more precise trigger controla Handguards are made from heat-resistant glass-filled nylon for shooting comfort and durabilitya Six-position telescoping M4-style buttstock and Mil-Spec Buffer tubea Shot peened and pressure (proof) tested bolt to ensure strength, structural integrity and durabilitya Chrome-plated bolt carrier inside diameter and chrome-plated gas key inside diameter provide exceptional resistance to hot gases. The gas key is staked so that it will not loosen after extensive firing. A matte black oxide finish on the exterior of the bolt carrier provides corrosion resistancea Gas block features serations on the angled face, providing a low-glare surfacea Patent pending Barrel Nut and Delta Ring are designed for one person handguard removal and installation. The design accepts most standard carbine length handguards. The barrel nut uses a standard wrench and can be swapped with a Mil-Spec barrel nut if desireda Rear sight can be folded out of teh way to make room for optics, but can be instantly redeployed if neededa Front sight post is elevation adjustable, and a front sight tool is includeda The A2-style F-height allows co-witness with many optics