SIG ROTARY DIOPTER SIGHT FOR 556 RIFLE

THIS IS SIG ITEM #1511663. IT IS THE NEW ROTARY DIOPTER REAR SIGHT THEY DESIGNED FOR THE SIG 556 RIFLE. MANY NEW MODELS HAVE THEM BUT THE EARLIER GUNS WERE SHORT CHANGED IN THE REAR SIGHT DEPT. HAVING NONE OR THE LITTLE FLIP UP EMERGENCY SIGHT. THIS IS A HIGH QUALITY PRECISION MADE STEEL SIGHT WITH TOOL-LESS ADJUSTMENT, COMPATIBLE WITH M1913 MOUNTING RAILS AND CALIBRATED FOR M855 AND M193 AMMO. IT HAS 4 POS (1)CQB(2)100M(3)200M AND (4)300M. FRONT AND REAR CO-WITNESS WITH THE SIG STS MINI RED-DOT. IT IS SIG ORIGINAL AND NEW. I HAD A CUSTOMER WHO BOUGHJT A NEW SIG556 FROM ME AND HAD A SET OF AFTERMARKET SIG 550 COPY SIGHTS HE WANTED SO I GAVE HIM A CREDIT. I RECENTLY HAD THESE IN STOCK AND THEY SOLD FOR $199. YOU ARE SAVING $30 FOR LACK OF BOX.