THE AR PLATFORM REDEFINED.
Introducing the new Ruger SR-556, a two-stage piston driven AR-style rifle. The SR-556 offers Ruger's legendary rugged reliability, and comes factory standard with a host of accessories that today's shooters demand. The piston driven SR-556 runs cleaner, cooler, and is easier to maintain than gas driven rifles, offering significantly improved reliability.
Chrome-Plated, Two-Stage Piston Driven Operating System: The Ruger SR-556 employs a patent-pending piston driven operating system providing the user with a cleaner, cooler running, reliable firearm that is truly state-of-the-art. The chrome-lined gas block and chrome-plated piston and regulator work together to provide a smooth power delivery stroke to the bolt carrier. All of the by-products of the gas system are vented out of the bottom of the gas block, away from the bolt carrier, keeping the action clean and free from contaminants.
4-Position, Chrome-Plated Gas Regulator: The 4-position gas regulator is adjustable for optimum reliability and superior operating endurance. The gas system may be closed completely for manual operation during training of when using a suppressor.
Chrome-Plated Bolt, Bolt Carrier and Extractor: The SR-556 comes with only the best - a chrome-lined barrel, chrome-plated piston, chrome-plated bolt carrier and chrome-plated regulator.
Cold Hammer-Forged, Chrome-Lined, Mil-Spec 41V45 Barrel: The SR-556 is equipped with a chrome-lined, cold hammer-gorged barrel made to exacting tolerances in-house at Ruger. With strict quality control over every step of the barrel making process, Ruger offers some of the best barrels available anywhere, outstanding accuracy potential and longevity.
6-Position Telescoping M4-Style Buttstock: The Ruger SR-556 comes standard with a 6-position M4-style telescoping buttstock, and houses a Mil-Spec buffer and spring.
Hogue Monogrip Pistol Grip: Hogue's industry leading, black rubber grip is comfortable when carrying or shooting, and comes standard on the Ruger SR-556.
Magpul PMag 30-Round Magazines Included: The SR-556 is supplied with three Magpul PMag magazines (a lightweight 5.56 NATO magazine). It features a pop-off storage/dust cover that alleviates pressure from the magazine feed lips, allowing for long-term storage of loaded magazines with the risk of feed lip creep that often causes malfunction in standard aluminum magazines. The PMag utilizes a resilient stainless steel spring for corrosion resistance, and an anti-tilt, self-lubricating follower.
Troy Industries Folding BattleSights: Troy Industries front and rear folding BattleSights are provided standard on the Ruger SR-556. This $260 retail value provides a windage adjustable rear sight and an elevation adjustable front sight that co-witness with Mil-Spec optics and can be easily removed to make room for high-power scopes. The sights can be folded down with the simple push of a button or flipped up with your thumbs. The sights are robustly constricted of aircraft grade aluminum with stainless steel hardware, and feature .5 MOA positive click adjustments and instantly convertible short and long rage apertures.
Troy Industries Quad Rail Handguard: The SR-556 features a 10" Troy Industries quad rail handguard made exclusively for Ruger and the SR-556. This handguard (a $260 retail value) provides four Mil-Std 1913 Picatinny rails, and is in alignment with the flattop receiver, providing ample space for mounting sights, lights, lasers or other accessories. The quad rail handguard is rigid and sturdy; even the M203 grenade launcher can be reliably operated on the Ruger SR-556. Made from aircraft grade aluminum, the quad rail is ribbed and vented to allow for maximum barrel cooling.
Troy Industries Rail Covers: Three Troy Industries rail covers are supplied with the Ruger SR-556, providing a comfortable, ergonomic hold on the unused portions of the handguard's Picatinny rails.
Soft-Sided Carry Case included
Catalog Number: SR556FB
Model Number: 05902
Caliber: 5.56mm NATO/.223 Rem.
Barrel Length: 16.12"
Height: 7.75" (with Sights Folded)
Weight: 7.92 lbs. (without magazine)
Twist: 1:9" RH
Suggested Retail: $1,995.00