Ruger AR-556 MPR Does it All

Ruger AR-556 MPR Does it All
Ruger AR-556 MPR Does it All

Ruger FirearmsU.S.A.-( Sturm, Ruger & Company, Inc. (NYSE: RGR) is proud to announce the new AR-556 Multi-Purpose Rifle (“MPR”). This custom-built modern sporting rifle features an 18” nitrided alloy barrel with rifle-length gas system, Ruger’s 15” free-float handguard compatible with M-LOK accessories, the Ruger Elite 452 AR-Trigger and ergonomic Magpul furniture. The perfect rifle for a variety of uses, the AR-556 MPR is capable and versatile.

“We are very excited to add this model to our modern sporting rifle lineup,” said Ruger President and CEO Chris Killoy. “Our talented team of engineers worked carefully to develop the ideal custom package for the AR-556 platform that does it all, right out of the box. From plinking to competition shooting, the MPR is the perfect rifle for just about anything.”

The MPR’s cold-hammer forged 18” alloy barrel with 5R rifling is salt bath nitrided for corrosion resistance and durability. The barrel is contoured to minimize weight without sacrificing rigidity, leaving a 0.75” journal for the low-profile gas block. The soft-shooting, rifle-length gas system paired with a Ruger muzzle brake provides smoother operation and softens recoil to keep every shot on target.

Ruger’s 15” free-float handguard is light, stiff and versatile, with Magpul M-LOK accessory attachment slots along the 3:00, 6:00 and 9:00 positions. Additional slots on the angled surfaces near the muzzle are perfect for mounting a light, laser or QD sling cup. Compared to a typical quad-rail forend, the 1.50” diameter handguard makes the MPR’s forend slim and controllable. M-LOK-compatible Picatinny rail sections can be easily added. The integral Picatinny rail at the 12:00 position is tightly controlled to the most current STANAG 4649 specification.

Ruger’s 15” free-float handguard is light, stiff and versatile, with Magpul M-LOK accessory attachment slots along the 3:00, 6:00 and 9:00 positions.
Ruger’s 15” free-float handguard is light, stiff and versatile, with Magpul M-LOK accessory attachment slots along the 3:00, 6:00 and 9:00 positions.

The crisp 4.5 pound trigger pull of the Elite 452 two-stage trigger is a great addition to the MPR. The lower receiver is fitted with Magpul’s MOE grip and Mil-Spec MOE SL buttstock, making the rifle easy to handle, shoulder and shoot. The Mil-Spec compatible lower and upper receivers are CNC-machined from forgings and hard coat anodized. The MPR comes complete with dust cover, brass deflector and forward assist.

For more information on the AR-556 MPR or to learn more about the extensive line of award-winning Ruger firearms, visit or To find accessories for the AR-556 MPR and other Ruger firearms, visit or your local independent retailer of Ruger firearms.

Ruger AR-556 MPR Spec Sheet

About Sturm, Ruger & Co., Inc.

Sturm, Ruger & Co., Inc. is one of the nation’s leading manufacturers of rugged, reliable firearms for the commercial sporting market. As a full-line manufacturer of American-made firearms, Ruger offers consumers over 400 variations of more than 30 product lines. For more than 60 years, Ruger has been a model of corporate and community responsibility. Our motto, “Arms Makers for Responsible Citizens®,” echoes the importance of these principles as we work hard to deliver quality and innovative firearms.

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I recently purchased this rifle and very satisfied with it. Does anyone know where I can get a Bipod at a decent price and not have to pay over $200?


I have fired about 20 rounds thru my MPR, At least 10 of them have jammed and wont eject. What is the best ammo to use? This is my first AR.


Try some good quality Ball Cartridges. U.S. Military, Israeli or similar. Avoid the steel case junk. It functions reliability in the SKS and the so-called AK types, possibly not in an AR-15 type rifle. What sort of ammunition are you using? Of course, your particular rifle could have problems of one kind or another, which might need factory attention.


I tired the field and stream from Dicks steel case and had a lot of FTE and had to field strip a few times to get the case out. I am going to try 2 brands of brass and hopefully it does the job. The rounds it did shoot they were accurate and very low recoil.


Just purchased one yesterday (9-25-17) at LGS for $539.00. I think it’s a heck of a deal for all it brings to the table.


A good set of flip-up sights should work on it as backup, or primary depending on your personal preference. I personally like iron sights myself, but as I get older, it’s getting harder to see at longer ranges, so a low powered scope, or red dot helps me tremendously. I already have a nice lower assembly complete, so kind of hoping they offer the upper receiver assembly like they do with the SR556. I have the Ruger AR 556, and find it to be accurate, and reliable, but miss the feel of the full-length handguard and sight radius of the… Read more »


Perhaps I’m just old fashioned, maybe just behind the times. How come no Sights?

Wild Bill

, I believe, from the long rail, that they intend a scope, of your choice, only.


WIld Bill

You might well be correct, but then how did they come to forget the significant virtues of good iron sights, ala the Garand and M-14 rifles?

Wild Bill

, You would have to ask them. Lots of rifles, now days, come with no iron sights, but rather drilled and tapped for scope bases.


As I recall, I did so inquire, so far without response or reply. To my perhaps old fashioned, even jaundiced view being indicative of a “problem”. I might try again though, as it is possible I’m misrembering. Anyhow, the thing is certainly beyond your control.

Dave in Fairfax