Ruger AR-556 Model 8500 Flat Top AR-15 Rifle

Ruger AR-556 Model 8500 Flat Top AR-15 Rifle Features The milled gas block is 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. Serrations on the angled face of the gas block provide a low glare surface. The handguards are made from heat-resistant glass-filled nylon for shooting comfort and durability. The front sight post is elevation adjustable, and a front sight tool is included. The A-2 Style F-Height allows co-witness with many optics. The Ruger® Rapid Deploy folding rear sight provides windage adjustability and is a solid, reliable aiming system when coupled with the elevation adjustable front sight. The rear sight can be folded out of the way to make room for optics but can be instantly redeployed if needed. The six-position telescoping M4-style buttstock and Mil-Spec buffer tube allow the rifle to be properly sized for different shooters, or varying levels of outerwear or defensive gear. The 16.1 inch medium contour barrel is cold hammer-forged providing ultra-precise rifling for 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 Ruger® flash suppressor is provided and the ½"-28 threaded barrel allows for standard muzzle accessories to be installed. The ergonomic pistol grip features an extended trigger reach for more precise trigger control. The enlarged trigger guard is designed to allow for gloved shooting. The 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 resistance. Specifications Caliber: .223/5.56 Stock: Black Synthetic, Collapsible Front Sight: Adjustable Post Rear Sight: Adjustable Ruger® Rapid Deploy Barrel Length: 16.10" Thread Pattern: 1/2"-28 Length of Pull: 10.25" - 13.50" Twist: 1:8" RH Finish: Type III Hard Coat Anodized Height: 8.00" Weight: 6.50 lbs. Overall Length: 32.25" - 35.50" Grooves: 6 Width: 2.50" Includes: (1) 30-round Magpul® PMAG® magazine