Ruger AR 556 for sale
(20)
Ruger AR 556 Magpul MOE AR-15 .223 / 5.56 NATO 16.1" Barrel 30Rd
Brand:
Ruger
Action:
Semi-Auto
Barrel Length:
16.1
Caliber:
5.56×45mm NATO
Capacity:
30
Finish Per Color:
Black
(0)
Ruger AR556 5.56/.223, 16" Barrel, M-LOK, Davidson's Dark Earth, 30rd
Brand:
Ruger
Action:
Semi-Auto
Barrel Length:
16.1
Caliber:
.223 Rem
Capacity:
30
Finish Per Color:
Brown
(7)
Ruger AR556 MPR 223 Wylde, 18" Carbon Fiber Barrel, Magpul PRS, Gray, Elite 452 Trigger, 30rd
Brand:
Ruger
Action:
Semi-Auto
Barrel Length:
18
Caliber:
.223 Rem
Capacity:
30
Finish Per Color:
Grey
(11)
Ruger AR556 5.56/.223, 18" Barrel, M-LOK, Davidson's Dark Earth, 30rd
Brand:
Ruger
Action:
Semi-Auto
Barrel Length:
18
Caliber:
.223 Rem
Capacity:
30+1
Finish Per Color:
Flat Dark Earth
(7)
Ruger AR556 Rosegold AR-15 5.56/223, 16" Barrel, 15" M-LOK Rail 30rd Mag
Brand:
Ruger
Action:
Semi-Auto
Barrel Length:
18
Caliber:
.223 Rem
Capacity:
30+1
Finish Per Color:
Rose Gold
Marketplace Insights
★ 4.8/5
based on 45 customer reviews across 5 variants from 19 retailers
Highly-rated Ruger AR-15 praised for exceptional value, reliability, and accuracy with minimal quality concerns.
What customers like
Excellent Value36%
This AR-15 is the best value around. Good components for the price
Accuracy & Reliability33%
Great accuracy - have now put 500 rounds through it with no issues
Quality Trigger22%
the trigger is amazing. Can't go wrong with this one!
Easy to Customize18%
floating barrel and customizing options
Fast Shipping16%
Fast shipping from grabagun. The rifle is excellent and accurate
Common concerns
Assembly/Disassembly Issues7%
Can be a bit Difficult to get front take down pin back in after cleaning
Initial BCG Rough2%
BCG was a little rough and jammed on first few rounds out of the box
Missing Accessories7%
My drawbacks would be only one Magazine
Frequently Asked Questions
Ruger AR 556 for sale
Is the Ruger AR-556 any good?
The Ruger AR-556 is a reliable, well-built AR-15 platform rifle priced around $850. It handles consistently across hunting, defense, and range use, with manageable recoil and durable construction. Multiple variants exist. It competes well against similarly priced rifles from Smith & Wesson and Palmetto State Armory.
Is the Ruger AR-556 discontinued?
The AR-556 has been discontinued and replaced by the Ruger Harrier. Remaining stock may still be available through retailers. As of now, 5 variants are tracked across 19 sellers, priced around $852, reflecting leftover inventory rather than ongoing production.
What is the difference between Ruger 556 and Ruger 556 MPR?
The AR-556 MPR has an 18-inch rifle-length gas system barrel versus the standard's 16-inch carbine barrel. The MPR also features a free-float handguard, improved trigger, and adjustable stock suited for competition. The standard AR-556 is a basic patrol-style rifle. Both chamber 5.56 NATO.
What is the best ammo for the Ruger AR-556 MPR?
Your AR-556 MPR chambers 5.56 NATO. For range use, 55-grain loads like Federal XM193 or PMC Bronze are affordable and reliable. For precision work, 77-grain match ammunition performs well with the 18-inch barrel's 1:8 twist. Match your choice to your purpose.
What does Ruger MPR stand for?
MPR stands for Multi-Purpose Rifle. Ruger designed this AR-556 variant for hunting, competition, defense, and range use. Its 18-inch barrel, free-float handguard, and improved trigger set it apart from the standard AR-556.
Does the Ruger AR-556 MPR have a threaded barrel?
Yes, the Ruger AR-556 MPR has a threaded barrel with a 1/2"-28 thread pitch, allowing attachment of suppressors or muzzle devices. It is available in multiple configurations, including both a 16.1-inch and an 18-inch barrel variant.
What rail is on the Ruger 556?
The Ruger AR-556 features a full-length Picatinny rail on top of the upper receiver for optics. Many models include an 11" aluminum free-float M-Lok handguard. Specific configurations vary by model.
Are all AR-15 556 magazines the same?
No. While most 5.56/.223 AR-15 magazines share the same basic dimensions and will fit standard lower receivers, they differ in material, follower design, spring quality, and reliability. USGI aluminum, Magpul polymer, and other brands vary in performance. Always test unfamiliar magazines before trusting them in critical use.