Ruger AR-556 MPR 18″ 5.56 NATO 1:8 Twist AR-15 Rifle – 15″ M-LOK Rail


Sturm, Ruger & Co., Inc. has been one of the nation’s leading manufacturers of dependable rifles, shotguns, and pistols since 1949.

The Ruger AR-556 MPR Model #8514 is well appointed with forged 7075-T6 aluminum upper and lower receivers, an 18” cold hammer forged 4140 chrome moly vanadium steel barrel, Magpul furniture, and a 15” free float M-LOK handguard. The AR-556 features a Ruger Muzzle Brake with a radial design, a 4.5 lb two stage Ruger Elite 452 AR-Trigger, and 9310 alloy steel, shot peened bolt.  ar 15 Rifle

This optic ready AR-15 includes a monolithic Picatinny rail for your choice of red dot, magnified rifle scope, or iron sights. M-LOK slots are available the 3, 6, and 9’o-clock for your favorite lights, lasers, and other accessories.


  • Chambered in 5.56 NATO with a 1:8 twist rate
  • 4140 chrome moly vanadium steel barrel with a black nitride finish
  • Type III hardcoat anodized
  • Includes (1) 30-round magazine
  • Semi-automatic
  • Two stage Ruger Elite 452 AR-Trigger with 4.5 lb pull
  • Optic ready
  • Radial Ruger Muzzle Brake
  • 15” free float M-LOK handguard
  • MIL-SPEC Magpul MOE SL collapsible buttstock
  • Magpul MOE pistol grip
  • Height: 8”
  • Overall length: 35” – 38.25”
  • Length of pull: 11.1” – 14.4”
  • Weight: 6.8 lbs
SKU: RUG08514 Category:
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Customer Reviews


Customer Reviews

John A. 07/30/2022

Everything came as advertised

William S. 2020/06/22

Very pleased with glock 17 fast shipping from rural king

Nick S 08/03/2022

Looking forward to order another gun for my collection Thanks for the hellpup

Dustin M. 07/01/2022

I’m not sure what I was expecting when I bought this gun. But I now know what I have. It is surprisingly light for its size and design and has surprisingly low recoil. Shoots and cycles fine as well. I have not taken it apart to see how complicated the breakdown process is but if it’s like the rest of my experience so far with this gun it shouldn’Read more about review stating Awesome gun to be too hard

Sydney 08/02/2022

Thank God I shot one and am so pleased with my current pistol. If you are looking for a really fine handling concealed carry pistol I’d take a look at the 9 Plus . I’m keeping mine

Benjamin H. 2020/10/10

All around great pistol. Buying process was simple and the delivery was fast. Def recommend

Lonny W. 2020/02/14

The light weight of this pistol was one of the major reasons for my purchasing it. I did have to move the rear sight slightly in order to zero it, but that is not uncommon. Using the mini-mag ammo, this thing is a tack driver. The feel in your hand and the comfortable sight pattern is great. Glad I purchased

Glen R 08/07/2022

Just bought a glock 19 for $395 today, Very happy with my experience.

Kurt H 02/15/2020

I was disappointed with how dirty the gun was. There was shavings or something in the choke threads and in the breach. It took me an hour to clean a new gun.

Jack C. 10/21/2021

This is a amazing gun for the price. I have only shot about 75 rounds through this gun. Shoots well and feels good holdingit .Very accurate.