Ruger's acclaimed AR-556 MPR now 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.
With 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 -this version of the AR-556 MPR is both versitile and rugged.
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