The Ruger AR-556 MPR combines a PROOF Research carbon fiber barrel with a lightweight, competition-oriented modern sporting rifle design. Its 18-inch barrel uses a .223 Wylde chamber, supporting both .223 Remington and 5.56 NATO ammunition. The direct impingement operating system, mid-length gas system, free-float M-LOK handguard, and Ruger Elite 452 two-stage trigger provide a balanced platform for range use, training, and precision-focused shooting. An adjustable Magpul PRS Lite stock, MOE-K2 grip, full-length top rail, and 1/2x28 threaded muzzle add practical flexibility for user configuration.

Key features

• PROOF Research carbon fiber barrel reduces weight while maintaining rigidity and accuracy potential.
• The .223 Wylde chamber safely accommodates both .223 Remington and 5.56 NATO ammunition.
• Ruger Elite 452 two-stage trigger offers a predictable first stage and crisp second-stage break.
• Free-float M-LOK handguard supports accessory placement without adding unnecessary bulk.
• Magpul PRS Lite adjustable stock helps users establish a consistent shooting position.
• Mid-length direct impingement gas system provides smooth, familiar AR-pattern operation.

The Ruger AR-556 MPR delivers a versatile, optic-ready platform with premium barrel technology and adaptable furniture.