Ruger AR-556 MPR | 18″ Proof Research | MFG# 8548

The Ruger AR-556 MPR in this listing features an 18-inch PROOF Research carbon fiber wrapped barrel and Magpul PRS Lite adjustable stock for a stable, ergonomic fit. It is built on a forged 7075-T6 flat-top upper with a free-float 15″ M-LOK handguard, a Ruger Elite 452 two-stage trigger, and a threaded muzzle finished with Ruger’s radial port muzzle brake. This configuration is oriented toward accurate, repeatable performance in sport shooting and field applications. A Vortex Strike Eagle 1-6×24 scope is a practical optic choice under $1,000 that pairs well with this rifle for mid-range precision and target work.

Product Specifications

• The UPC is 736676085484.
• The manufacturer is Ruger / Sturm, Ruger & Co..
• The model number is 8548.
• The model name is AR-556 MPR.
• The action type is Semi-Automatic.
• The barrel measures 18 inches and is carbon fiber wrapped.
• The barrel is a PROOF Research carbon fiber wrapped barrel.
• The twist rate is 1:8″ RH.
• The muzzle thread pattern is 1/2″-28.
• The stock is a Magpul PRS Lite adjustable chassis.
• The handguard is a 15-inch free-float with Magpul M-LOK slots.
• The trigger is a Ruger Elite 452 two-stage with a reported 4.5-pound pull.
• The rifle includes one 30-round Magpul PMAG magazine.
• The finish is Gray Cerakote.
• Iron sights are not included.

This AR-556 MPR presents a blend of lightweight, precision-oriented components—Proof Research carbon fiber barrel, an adjustable Magpul PRS Lite stock, and a crisp two-stage Ruger trigger—that make it a strong option for disciplined range work and field precision tasks. The free-float M-LOK handguard gives mounting flexibility for accessories, and the threaded muzzle accepts a wide range of standard muzzle devices. Overall the package is built to deliver consistent, controllable performance in sporting and precision-focused contexts.

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