SR-556 Autoloading Rifle 5.56mm NATO/.223 Remington 16.12 Inch Chrome-Lined Barrel 6-Position Telescoping M4 Style Stock With Hogue Monogrip Folding BattleSights Piston Driven Operating System 30 Rounds Not CA Approved
Four-position chrome plated gas regulator is adjustable and may be closed completely for manual operation during training or when using a suppressor. Quad rail handguard provides four Mil-Std 1913 Picatinny rails and is alignment with the flattop receiver provides space for mounting sights or other accessories. Troy Industries folding battlesights. Six-position telescoping M4 style buttstock. Cold hammer-forged chrome-lined Mil-Spec 41V45 barrel. Hogue monogrip pistol grip. Includes chrome-plated bolt, bolt carrier and extractor, rail covers, soft sided carry case and three MagPul Pmag 30 round magazines. 1:9 right hand twist. 6 grooves.
The Ruger SR-556FB (FB= Standard Model) offers Ruger’s legendary rugged reliability while redefining the AR platform with piston driven performance. SR-556 rifles come feature-packed and pre-accessorized, and include the following:
** Chrome-plated, two-stage piston driven operating system provides improved reliability over gas driven rifles
** 4-position, chrome-plated gas regulator allows operator to tune rifle to specific ammunition or rifle conditions
** Chambered in the popular 5.56mm NATO/.223 Rem., the SR-556 comes with 1 MAGPUL PMAG 30-round magazine
** Chrome-plated bolt, bolt carrier and extractor aid in performance and durability
** Cold hammer-forged, chrome-lined Mil-Spec 41V45 barrel provides long-lasting accuracy
** Troy Industries Folding BattleSights are adjustable and co-witness with Mil-Spec optics so they can be easily removed to make room for high-power scopes
** Troy Industries Quad Rail Handguard provides rigid mount for piston driven transfer rod
** Troy Industries Rail Covers provide comfortable hold for unused Picatinny rails
** 6-Position Telescoping M4-Style Buttstock is collapsible and allows the length of pull to be adjusted from 10.25” to 13.50”
** Hogue® Monogrip® Pistol Grip with finger grooves provides comfort when carrying and shooting
AR-style SR-556 ships with 10" Troy Industries Quad Rail, Three Troy Industries Rail Covers, 1 30-Round MagPul Magazine, and a soft Ruger case. Also includes Hogue® Monogrip® Pistol Grip.
First field test of the SR556- Sheridan, Wyoming. Ruger factory sponsored prairie dog hunt. We were privileged to attend the hunt, and an Impact employee was the first to take an animal with the SR556 rifle!
Function and reliability were 100%. The dog town we were shooting at had dogs out to 360 yards. All ranging was done using the new Ziess 8x binoculars with range and holdover function. Even with a low 10x scope, dogs were taken all the way out to 361 yards. Very impressive for any rifle, and even more so for a carbine!
We were shooting Hornady TAP ammo, 55g, loaded into the P-Mags that are included with each rifle. Effect on the targets was devastating. Multiple hits and complex gymnastics by the dogs were the norm.
All in all, our experience with the SR556 was beyond our expectations. The gas system gives the gun a softer recoil that a standard gas AR, and the chamber/bolt area was much cleaner that a gas AR. This SR556 is a keeper, and a really good value with all the good kit that is part of the base rifle.
Update Fall 2011: We have sold literally hunderds of the Ruger SR556 rifles. They are incredibly reliable and several of our customers report that even after thousands of rounds (some without cleaning) they have not experienced a single malfunction!
^Two stage adjustable piston^