1. Firearms
  3. Semi-Auto Rifles
  5. AR-15 Rifles

Ruger AR-556 5.56 NATO M4 Tactical Gray Autoloading Rifle

  • Item Number: 8505
  • /
  • View More Items by Ruger
  • /
  • Condition: NEW
Ruger AR-556 5.56 NATO M4 Tactical Gray Autoloading Rifle
RUGER AR-556 5.56 NATO M4 Tactical Gray Autoloading Rifle
$799.00

Temporarily Out of Stock

Includes FREE shipping
  • RADICAL FIREARMS RF-15 SOCOM 5.56MM NATO AR-15 STYLE RIFLE

    Radical Firearms AR-15 SOCOM 5.56 NATO Rifle with MFT Furniture
    $685.00 $399.99

  • GREAT LAKES FIREARMS 223/5.56MM SEMI-AUTOMATIC AR15 WITH TUNGSTEN CERAKOTE FINISH

    Great Lakes Firearms AR15 223 Wylde Semi-Automatic Rifle with Tungsten Cerakote Finish
    $529.99

  • ANDERSON MANUFACTURING COMPLETE OPEN TRIGGER LOWER 5.56MM

    Anderson Manufacturing Complete Open Trigger Assembled AR-15 Lower Receiver (Multi Cal)
    $181.00 $99.99

  • RUGER AR-556 5.56MM WITH M-LOK

    Ruger AR-556 5.56mm Semi-Automatic Rifle with M-LOK and Heavy Contour Barrel
    $1,039.00 $819.99

  • SPRINGFIELD SA-16 A2 5.56 RIFLE

    Springfield SA-16A2 5.56mm Semi-Automatic Rifle with Carry Handle, Fixed Stock and Chrome-Lined Barrel
    $1,199.99

  • RADICAL FIREARMS RADICAL 5.56MM 16` BARREL WITH 15` FREE FLOAT RAIL ODG

    Radical Firearms FR16 5.56 NATO Rifle with M-LOK Handguard and OD Green Stock
    $399.99

  • DIAMONDBACK DB15 5.56 NATO RIFLE WITH MAGPUL STOCK AND SOUTHERN GRIND JACKAL FIXED BLADE KNI

    Diamondback DB15 5.56 NATO Rifle with Magpul Stock and Southern Grind Jackal Fixed Blade Knife
    $972.00 $699.00

  • CQT WEAPON SYSTEMS CQT15 5.56MM 16` BARREL

    Cqt Weapon Systems CQT15 5.56mm Semi-Auto Rifle with Aluminum M-Lok Handguard
    $998.99 $749.99

  • DANIEL DEFENSE DD4 SPR III 5.56 18` 1:7 MK12 15` RIS III

    Daniel Defense DD4 SPRIII 5.56mm Semi-Automatic Rifle with 18 Inch Barrel
    $2,641.00 $2,299.99

  • PMC X-TAC 5.56mm NATO 62 gr M855 Green-Tip 20/Box

    PMC X-TAC 5.56mm NATO 62 gr M855 Green-Tip 20/Box
    $8.99
    ($0.45 / round)

  • Hornady 5.56 NATO 55 gr FMJ (M193) Frontier 20/Box

    Hornady 5.56 NATO 55 gr FMJ (M193) Frontier 20/Box
    $8.99
    ($0.45 / round)

  • Hornady 223 Rem 55 gr Soft Point Brass Training 50/Box

    Hornady 223 Rem 55 gr Soft Point Brass Training 50/Box
    $22.99
    ($0.46 / round)

  • PMC 5.56mm 55 gr FMJ-BT X-TAC 20/Box

    PMC 5.56mm 55 gr FMJ-BT X-TAC 20/Box
    $9.99
    ($0.50 / round)

  • Hornady 5.56 NATO 62 gr FMJ Frontier 20/Box

    Hornady 5.56 NATO 62 gr FMJ Frontier 20/Box
    $10.99
    ($0.55 / round)

  • Hornady 5.56 NATO 75 gr BTHP Match Frontier 20/Box

    Hornady 5.56 NATO 75 gr BTHP Match Frontier 20/Box
    $14.99
    ($0.75 / round)

  • PMC 223 Rem 55 gr FMJ BT Bronze 20/Box

    PMC 223 Rem 55 gr FMJ BT Bronze 20/Box
    $8.99
    ($0.45 / round)

  • Hornady 223 Rem 68 gr BTHP Match Frontier 20/Box

    Hornady 223 Rem 68 gr BTHP Match Frontier 20/Box
    $12.99
    ($0.65 / round)

  • Hornady 223 Rem 55 gr FMJ Frontier 20/Box

    Hornady 223 Rem 55 gr FMJ Frontier 20/Box
    $8.99
    ($0.45 / round)

  • Hornady 223 Rem 55 gr Hollow Point Match Frontier 20/Box

    Hornady 223 Rem 55 gr Hollow Point Match Frontier 20/Box
    $11.99
    ($0.60 / round)

  • Hornady 5.56 NATO 68 gr BTHP Match Frontier 20/Box

    Hornady 5.56 NATO 68 gr BTHP Match Frontier 20/Box
    $13.99
    ($0.70 / round)

  • Hornady 5.56 NATO 55 gr Hollow Point Match Frontier 20/Box

    Hornady 5.56 NATO 55 gr Hollow Point Match Frontier 20/Box
    $13.99
    ($0.70 / round)

  • AMEND2 MOD 2 AR-15 5.56 MM 30 RD BLACK MAG

    Amend2 AR15/M4 Mod.2 5.56 NATO 30 Round Magazine (Black)
    $14.99 $6.99

  • MAGPUL PMAG 30 GEN M2 AR-15 556 NATO 30 RD MAG

    Magpul PMAG GEN M2 5.56 NATO 30 Round Black Magazine
    $12.95 $9.99

  • MAGPUL PMAG 10 GEN M3 AR-15 556 NATO 10 RD MAG

    Magpul PMAG GEN M3 5.56 NATO 10 Round AR-15 Magazine
    $14.99

  • AMEND2 AR-15 300 AAC BLACKOUT 30-ROUND MOD-3 MAGAZINE

    Amend2 AR-15 300 AAC Blackout 30 Round Mod-3 Magazine
    $15.99 $9.99

  • MAGPUL PMAG 30 GEN M3 AR-15 556 NATO 30 RD MAG

    Magpul PMAG GEN M3 5.56 NATO 30 Round Black Magazine
    $16.99

  • MAGPUL PMAG 30 GEN M3 AR-15 556 NATO 30 RD WINDOW MAG

    Magpul PMAG GEN M3 5.56 NATO 30 Round Black Magazine with Window
    $17.99

  • MAGPUL PMAG 30 GEN M2 AR-15 556 NATO 30 RD WINDOW MAG

    Magpul PMAG GEN M2 5.56 NATO 30 Round Magazine with Window
    $15.99

  • MAGPUL PMAG 30 GEN M3 AR-15 556 NATO 30 RD WINDOW MAG (TAN)

    Magpul PMAG GEN M3 5.56 NATO 30 Round Coyote Tan AR/M4 Magazine with Window
    $17.99

  • MAGPUL PMAG 20 GEN M3 AR-15 556 NATO 20 RD MAG

    Magpul PMAG GEN M3 5.56 NATO 20 Round Black Magazine
    $13.99

  • MAGPUL PMAG 30 GEN M3 AR-15 556 NATO 30 RD MAG (TAN)

    Magpul PMAG GEN M3 5.56 NATO 30 Round Coyote Tan Magazine
    $16.99

  • DANIEL DEFENSE AR15 223 REM 32 ROUND 5.56 MAG BLACK

    Daniel Defense AR15 Magazine 223 REM 5.56 NATO 32 Round Factory Magazine Black
  • AMEND2 MOD 2 AR-15 556 30 RD FDE MAG

    Amend2 AR15/M4 Mod.2 5.56 NATO 30 Round Magazine FDE
    $14.99 $8.99

Product Description

What's in the Box

  • Ruger AR-556 5.56mm Tactical Gray
  • (1) 30-Round Magazine
  • Cable Lock
  • Owner's Manual

The AR-556 in Tactical Gray is constructed from top-quality components, including forged 7075-T6 aluminum upper and lower receivers and a cold hammer-forged chrome-moly steel barrel with M4 feed ramp cuts. Chambered in 5.56 NATO, the AR-556's carbine-length design is fully configured with a Ruger® Rapid Deploy folding rear sight, milled F-height gas block with post front sight, forward assist, dust cover, and brass deflector. Other features include a telescoping six-position stock, improved trigger-reach grip, enlarged trigger guard and one 30-round Magpul® PMag®. Standardized M4/AR components are utilized throughout, so the AR-556 can be customized easily.

Firearm Features

  • 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.
  • 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 Ruger® flash suppressor is provided, and the 1/2"-28 threaded barrel allows for standard muzzle accessories to be installed.
  • 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, 30-round Magpul® PMAG®.

Firearm Specifications

  • Model Number: 8505
  • Caliber: 5.56 NATO / 223 REM
  • Stock: Tactical Gray Synthetic Collapsible
  • Front Sight: Adjustable Post
  • Rear Sight: Adjustable Ruger® Rapid Deploy
  • Barrel Length: 16.10"
  • Thread Pattern: 1/2"-28
  • Twist: 1:8" RH
  • Capacity: 30
  • Finish: Type III Hard Coat Anodized
  • Height: 8"
  • Weight: 6.5 lb.
  • Overall Length: 32.25" - 35.50"
  • Finish: Type III Hard Coat Anodized
  • Length of Pull: 10.25" - 13.50"
  • Grooves: 6

Customer Comments & Questions

Customer Reviews

No reviews have been written for this product.

Write a review
Back to top