The newest addition to the Ruger AR-556 MPR family features a PROOF Research (Global Leader in Composite Technology) carbon fiber barrel. The attractive, 18"" barrel is chambered in .223 Wylde, a hybrid chamber that safely, accurately, and reliably functions with both .223 Remington and 5.56 NATO ammunition. The muzzle is finished with Ruger's radial port muzzle brake. The rifle also features the Ruger Elite 452 two-stage trigger, Magpul PRS Lite stock, and an MOE-K2 grip.

• 18" PROOF Research carbon fiber wrapped barrel
• Rifle-length gas system paired with chambering in .223 Wylde, reliably functions with both 5.56 NATO/.223 Remington
• Magpul PRS Lite stock that balances the rifle and has secure length of pull and comb height adjustments for the best fit
• Magpul MOE-K2 grip provides ergonomic access to trigger and safety controls.
• Handguard is free-floated for accuracy and the slim, 15" length provides enhanced ergonomics.
• Bolt is mil-spec 9310 and is machined, shot peened and proof tested for strength and durability.
• The Ruger Elite 452 AR-Trigger is a two-stage trigger that offers a smooth, crisp, 4.5 pound trigger pull.
• A full-strength hammer spring for consistent primer ignition and a lightweight hammer
• Magpul M-LOK accessory attachment slots along the 3:00, 6:00 and 9:00 positions

Ruger AR-556, Multi-Purpose Rifle, Semi-automatic Rifle, AR15, 223 Wylde, 18" Proof Carbon Fiber Barrel, Ruger Radial Port Muzzle Brake, Rifle Length Gas System, Cerakote Finish, Gray, Magpul PRS Lite Stock, Magpul MOE-K2 Grip, 15" M-LOK Free Floated Aluminum Handguard, Ruger Elite 452 Two Stage Trigger, 30 Rounds, 1 Magazine 08548