NEW M249 AND MK46 FRONT SIGHT ASSEMBLY.  FRONT SIGHT FRAME WITH A2 SIGHT POST.  THIS UPGRADE INSTALLS ON ALL EXISTING M249/M249S, MK46 MODELS, JUST REMOVE STANDARD SIGHT AND SLIP ON. THIS HDD SIGHT IS ELEVATION AND WINDAGE ADJUSTABLE. WE MADE THESE TO TAKE M16/AR15 A2 FRONT SIGHT POSTS. COMES WITH ALLEN WRENCH AND SIGHT ADJUSTING TOOL. OPTIONAL TRITIUM NIGHT SIGHT FRONT POST, SELECT IN OPTION BOX. THESE ARE THE LATEST MODEL, MUCH EASIER TO ADJUST THAN THE OLD STANDARD AWKWARD FN FRONT SIGHT. (711)