Made from aerospace-grade 7075-T6 aluminum forging, the flattop upper receiver includes a forward assist, dust cover and brass deflector, and is Type III hard coat anodized for maximum durability.
Bolt is machined from 9310 alloy steel and is shot peened and pressure (proof) tested to ensure strength, structural integrity and durability.
Cold hammer-forged 4140 chrome-moly steel barrel with ultra-precise rifling provides exceptional accuracy, longevity and easy cleaning. The 1:8" twist rate stabilizes bullets from 35 to 77 grains, and the 5.56 NATO chamber allows the use of both 5.56 NATO and .223 Rem. Ammunition. M4 feed ramps provide improved operational reliability.
Ergonomic pistol grip features an extended trigger reach for more precise trigger control.
Chrome-plated bolt carrier inside diameter and chrome-plated gas key inside diameter provide exceptional resistance to hot gases. The gas key is staked so that it will not loosen after extensive firing. A matte black oxide finish on the exterior of the bolt carrier provides corrosion resistance.
Also includes: One, 30-round Magpul® PMAG®.
Sturm, Ruger & Co., Inc. is one of the nation's leading manufacturers of rugged, reliable firearms for the commercial sporting market. As a full-line manufacturer of American-made firearms, Ruger offers consumers over 400 variations of more than 30 product lines, from the ubiquitous 10/22® and Mini-14®, to the new and exciting LCP® II, Mark IV™, Ruger American Pistol®, Ruger Precision Rifle®, SR-556 Takedown®, AR-556® and Ruger American Rifle®. Our awarding-winning products (the Gunsite Scout Rifle, SR9c®, LCR® and LCP®) all prove that Ruger has a rugged, reliable firearm to meet every shooter's needs. For more than 60 years, Ruger 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.
Rugged, Reliable Firearms®Copyright © 2017 by Sturm, Ruger & Co., Inc.