Ruger recently introduced a lower priced model of their SR-556 AR-15 called the SR-556E. It retails for about $600 cheaper than the SR-556 at about $1369. No word from Ruger what the “E” stands for, but what we do know is that it comes with only a 12 o’clock rail as opposed to a full quad rail like the SR-556 comes with.
Caliber: 5.56mm NATO/.223 Rem.
Finish: Black Oxide/Hardcoat Anodized
Grip: Standard A2
Barrel Length: 16.12″
Barrel Twist: 1:9″ RH
Overall Length: 32.75″ – 36.00″
Weight: 7.36 lbs.