Ruger 8511 AR-556 *CO/MD Compliant 5.56x45mm NATO 16.10" 10+1 Black Hard Coat Anodized Black 6 Position Stock Black Polymer Grip

RUGER®
AR-556® State REGULATED
• Gas-operated semi-auto
• 9310 alloy steel bolt (shot peened/pressure tested)
• Matte black oxide finished chrom-lined bolt carrier & gas key (staked)
• Carbine-length (M4) positioned milled gas block with QD socket & bayonet lug
• Type III hard coat anodized 7075-T6 aluminum flattop upper receiver with forward assist dust cover & brass deflector
• Ruger® Rapid Deploy rear folding sight (windage adj.)
• A2 F-height front post sight (elevation adj.) sight tool included
• Single-stage trigger
• Enlarged trigger guard
• Ergonomic pistol grip with extended trigger reach
• Matte black oxide finished heavy contour cold hammer-forged threaded barrel with ultra-precise rifling & M4 feed ramps
• 1:8" twist rate
• Heat-resistant glass-filled nylon M4 handguard with barrel nut & Delta ring
• Black synthetic 6-Position telescoping M4 buttstock
• MIL-SPEC buffer tube
• Includes (1) metal mag
• OAL: 32.25"-35.50"

Caliber: 5.56 Nato / 223 Rem - Stock: Black Synthetic Collapsible - Front Sight: Adjustable Post - Rear Sight: Adjustable Ruger Rapid Deploy - Barrel Length: 16.10 - Thread Pattern: 1/2-28 - Handguard: Glass-Filled Nylon - Twist: 1:8 RH - Capacity: 10 - Finish: Type III Hard Coat Anodized - Height: 8 - Weight: 6.7 lb. - Overall Length: 32.25-35.50 - Length of Pull: 10.25-13.50 - Grooves: 6 - Ruger Rapid Deploy folding rear sight provides windage adjustability and pairs with the elevation adjustable front sight for a solid reliable aiming system. The rear sight can be folded out of the way to make room for optics but can be instantly redeployed if needed. - 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. - 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. - Bolt is machined from 9310 alloy steel and is shot peened and pressure (proof) tested to ensure strength structural integrity and durability. - Front sight post is elevation adjustable and a front sight tool is included. The A2-style F-height allows co-witness with many optics. - 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 desired. - 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. - Heavy 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. - Ergonomic pistol grip features an extended trigger reach for more precise trigger control. - 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. - Single-stage trigger provides durable and reliable fire control. The enlarged trigger guard is designed to allow gloved shooting. - Handguards are made from heat-resistant glass-filled nylon for shooting comfort and durability. - Also includes: One 10-round metal magazine.