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Ruger AR-556 5.56mm Semi-Automatic Rifle with M-LOK and Heavy Contour Barrel

  • Item Number: 8529
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  • View More Items by Ruger
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  • Condition: NEW
$759.99 $899.99
Limited-time Deal
In Stock with FREE shipping
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Product Description

What's in the Box

  • Ruger AR-556 5.56mm Semi-Auto Rifle
  • (1) Magazine
  • Cable Lock
  • Owner's Manual

Affordable, American-Made modern sporting rifle with the rugged reliability that you have come to expect from Ruger. Made from aerospace-grade 7075-T6 aluminum forging, the flattop upper receiver includes a forward assist, dust cover and brass deflector. Bolt is machined from 9310 alloy steel and is shot peened and pressure (proof) tested to ensure strength, structural integrity and durability.

Firearm Features

  • 11" aluminum handguard is free-floated for accuracy and features Magpul® M-LOK® accessory attachment slots along the 3:00, 6:00 and 9:00 positions with additional slots on the angled faces near the muzzle.
  • Flat top upper receiver features a Picatinny rail for easy attachment of magnified optic, red dot or open sights.
  • Made from 7075-T6 hard-coat anodized aluminum forgings, shot-peened and proof-tested 9310 steel bolt, and 8620 steel bolt carrier. The inside diameter of the carrier and gas key are chrome plated and the key is staked for longevity.
  • Single-stage trigger provides durable and reliable fire control. The enlarged trigger guard is designed to allow gloved shooting in cold weather.
  • 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.
  • Equipped with a heavy contour, cold hammer-forged alloy barrel with 1:8" twist rifling that provides exceptional accuracy with bullets from 35 to 77 grains. M4 feed ramps and 5.56 NATO chamber allows the use of both 5.56 NATO and .223 Rem. ammunition. The barrel and 1/2"-28 Ruger® flash suppressor have a matte black oxide finish to reduce glare and provide corrosion resistance.
  • Ergonomic pistol grip features an extended trigger reach for more precise trigger control.
  • Made from aerospace-grade 7075-T6 aluminum forging, the flat top upper receiver features a forward assist, dust cover and brass deflector.
  • Also includes: one, 30-round Magpul® PMAG® magazine.

Firearm Specifications

  • Stock: Black Synthetic Collapsible
  • Front Sight: None
  • Rear Sight: None
  • Barrel Length: 16.10"
  • Thread Pattern: 1/2"-28
  • Feature: Free-Float Handguard
  • Handguard: Free-Float with M-LOK Attachment Slots
  • Twist: 1:8" RH
  • Capacity: 30
  • Receiver Finish: Type III Hard Coat Anodized
  • Height: 7.20"
  • Weight: 6.7 lb.
  • Overall Length: 32.25" - 35.50"
  • Length of Pull: 10.25" - 13.50"
  • Grooves: 5

Customer Comments & Questions

Customer Reviews

(5 out of 5) Ar-15 assult rifle
by from Williamsport, PA on

Bought this bad boy back 2019 in February was originally 859 or so was on sale for 549 580 after tax shipped super super fast. Placed my order on Monday shipped out Wed arrived Friday ..took home update I made some adjustments and custize it, I've put 500 into accessories well worth every penny.

(4 out of 5) Great Gun
by from Bismarck, ND on

This is a great rifle for the money. I paired with a vortex scope and had it dialed in using the 50/200 zero method and it didn’t take long to have very good groups! I purchased before the price increase. SOS shipped within a week which is very good considering they had a potential delay warning for firearms orders. Never had an issue with them for any purchase and highly recommend.

(5 out of 5) Great good Gun
by from New Orleans, LA on

Nothing bad to say about this ar for the price 6-7 or this company new loyal customers. Ps I did extensive research on ar platform beforehand.

(5 out of 5) Great carbine!
by from Deatsville, AL on

Excellent rifle, well made and very accurate. I wish I had purchased two, one for my son who covets mine.

(5 out of 5) Great Product and Speedy Delivery
by from Grand Rapids, MI on

Very pleased with this purchase. Ordered on a Wednesday and was delivered by Sunday.

(5 out of 5) Awesome!
by from Hickory, NC on

Extremely happy with the gun as well as the amazingly fast processing and delivery of my order. Sportsman’s Outdoor Superstore has my business from now on!

(5 out of 5) Buy It Today
by from Houston, TX on

Great rifle for the price. I purchase this AR on the 13th of April and I figured with everything going on it wouldn't arrive until mid march. I was shocked when it arrived within 14 days. Placed a reflex sight it, took it the range last night and ran 500 rounds through it without any problems.

(5 out of 5) Ruger ar-15 .556
by from Williamsport, PA on

Bought this back in March I happened to get this when the gun was listed at 549.99 now it 649 so I got a steal there. Order it on mon processed wed was shipped out was at the ffl dealer that friday. I havent had a chance to shoot the gun but I am sure I wouldn't have any issue I highly recommend this weather it 550-650 price range worth every single penny and the customer service is great go place your order asap.

(5 out of 5) Everything's perfect!
by from La Vergne, TN on

I ordered this the Saturday before Christmas. Arrived Christmas Eve, 3 days after placing the order. Unfathomable all things considered. Oh and my FFL closed at 3 p.m.

 As for the gun itself, it's perfect. I've wanted a modern sporting rifle awhile now. Arrived well oiled, and chewed through the 120 rds of 55 gr .556 ammo I ran through it with absolutely no problems. Y'all are the best!

(5 out of 5) Excellent fit and finish- great price
by from FOREST, VA on

A typical Ruger product, excellent firearm priced far below comparable arms. A shooter that gobbles up any ammo run thru it. My rifle was shipped quickly at a fair price. Sportsman's Outdoor Superstore is #1 with me.

(5 out of 5) Worth the money!
by from Deatsville, AL on

Well made, accurate, reliable and well priced entry level carbine. All the bells and whistles that I wanted in a backup rifle without the huge price tag. Going behind the seat in my Jeep for light ranch work. I couldn't be more pleased.

(5 out of 5) Much more rifle than I expected for the price!
by from Roanoke, VA on

First, let me say I'm not a gun snob. But I do tend to purchase as close to top of the line models as I can, taking into account great deals. I initially bought this little rifle to be left to my grandson, who just turned 1. In 17 years, he might appreciate this old timey rifle.
 Out of the box I was fairly impressed...an AR platform with the Ruger name, USA made for under $470. After closer inspection, this rifle started impressing me more and more. The fit and quality was way above a sub $470 firearm. So I decided to run a few rounds thru it. After slapping on a Nikon 3x9 and a quick bore sighing, I was easily shooting .75 MOA groups of 3 rounds at 100 yards. It does string slightly high and left as the barrel heats up. So I let it cool down and slowly ran some Hornady .223 Superformance Match 75g BTHP rounds thru it. 3 of the 5 shot group were touching. A true MOA rifle. Impressive! Tomorrow I'm going to put a better scope on it and using the same ammo, I'm gonna leg it out to 300 - 500 yards. We'll see how well it does since the weather conditions should be perfect.
 All in all, for a budget Ruger AR this thing is amazing. If you're looking to get into the AR platform, or just wanting another one for whatever reason you can never have enough firearms, this rifle is a steal at $469.99 and free shipping.

(5 out of 5) Happy customer
by from Naperville, IL on

The website stated that shipping is delayed. I ordered this AR on Friday 10/11 and it was delivered to my FFL dealer on 10/16. Got exactly what I ordered and I’m very happy with the experience.

(5 out of 5) 1st order
by from Willow Spring, NC on

Great product and unbelievable shipping.