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AR-556® MPR with PROOF® Research Carbon Fiber Barrel

The newest addition to the Ruger® AR-556® MPR family features a PROOF® Research 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 rifle also features the Ruger® Elite 452® two-stage trigger, Magpul® PRS Lite® stock, and an MOE-K2® grip.

  • StockMagpul® PRS Lite®
  • HandguardFree-Float With Magpul® M-LOK® Slots
  • SightsNone
  • Barrel Length18″
  • Thread Pattern1/2″-28
  • Twist1:8″ RH
  • Capacity30
  • FinishGray Cerakote®
  • Height8″
  • Weight7.4 lb.
  • Overall Length37.63″ – 39″
  • Length of Pull13.88″ – 15.25″
  • Grooves4
  • UPC7-36676-08548-4
  • Suggested Retail$2049.00
  • Features an 18″ PROOF® Research carbon fiber wrapped barrel that is both attractive and significantly lighter than standard barrels, while still offering excellent accuracy and repeatability.
  • Features a rifle-length gas system paired with chambering in .223 Wylde, a well-established chamber geometry that safely, accurately, and reliably functions with both 5.56 NATO and .223 Remington ammunition.
  • Lower receiver is fitted with 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. It features a full-strength hammer spring for consistent primer ignition and a lightweight hammer that enables a faster lock time for improved accuracy.
  • Magpul® M-LOK® accessory attachment slots along the 3:00, 6:00 and 9:00 positions with additional slots on the angled faces near the muzzle.
  • Ruger® muzzle brake is a radial port design that significantly reduces felt recoil and muzzle movement. The threaded barrel allows for standard muzzle accessories to be installed.
  • Made from aerospace-grade 7075-T6 aluminum forging, the flat top upper receiver includes a forward assist, dust cover and brass deflector.
  • Bolt carrier and gas key have chrome-plated inside diameters to provide exceptional resistance to hot gases. The gas key is staked so that it will not loosen after extensive firing.
  • Also includes: one, 30-round Magpul PMAG® magazine.

Ruger 

Sturm, Ruger & Co., Inc. is one of the nation’s leading manufacturers of rugged, reliable firearms for the commercial sporting market. With products made in America, Ruger offers consumers almost 800 variations of more than 40 product lines, across both the Ruger and Marlin brands. For almost 75 years, Sturm, Ruger & Co., Inc. has been a model of corporate and community responsibility. Our motto, “Arms Makers for Responsible Citizens®,” echoes our commitment to these principles as we work hard to deliver quality and innovative firearms.

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