HOLOSUN 510 OPEN REFLEX RED

FEATURES:
-When focusing on the target, the size of the reticle will change based on the distance between your eyes
and objective lens
-Parallax free with unlimited eye relief
-Minimize vision obstruction with push button controls & streamlined housing design
-Solar & battery power supplies
-Switchable circle/dot and red dot reticles
-Titanium-alloyed, shock resistant protective hood