Ruger AR-556 MPR 5.56 NATO Semi-Automatic Rifle, 16" Threaded Barrel, Elite 452 Two-Stage Trigger, Matte Black
The AR-556 MPR (Multi-Purpose Rifle) refines Ruger’s direct-impingement platform with an upgraded trigger, lightweight free-float handguard, and mid-length gas system that softens recoil. Built in 2021, this example shows virtually no use and retains the factory-fresh look that collectors and shooters appreciate.
Condition
Overall Condition: As-new condition with no signs of prior handling beyond what’s typical from inspection.
Bore Condition: Excellent – Clean, mirror finish, no signs of wear.
Bore Rifling: Excellent Rifling – Sharp lands and grooves.
Minor, superficial scratches and small handling marks are present on the exterior surfaces, but they do not affect function or overall appearance. The bore remains bright and shiny.
What’s Included
- Ruger factory cardboard box with SKU 08542 label
- Factory paperwork
- One 30-round Magpul PMAG polymer magazine
The cold-hammer-forged 16" 4140 steel barrel is threaded 1/2-28 TPI and fitted with Ruger’s radial-port muzzle brake for flatter shooting. A 1:8" right-hand twist stabilizes a broad range of bullet weights from 35 to 77 grains.
Ruger’s Lite 13.5" free-float M-LOK aluminum handguard reduces front-end weight while providing ample slots for accessories. A continuous Picatinny rail on top pairs with the A3-style flat-top receiver, so optics and backup sights mount without modification.
The mid-length gas system balances reliability with lower impulse, and the Ruger Elite 452 two-stage trigger breaks at approximately 4.5 lb for a clean, repeatable pull. Standard controls include a manual safety selector and textured B5 Systems Type P23 grip.
The six-position adjustable polymer stock allows quick length-of-pull adjustments to suit armor, clothing layers, or different shooters. The rifle ships with a 30-round Magpul PMAG, so it is range-ready out of the box.