Black Owl Tactical Gear announce their new Low Profile Reflex Sights... "The Combat Series Optic Scopes SSR2301 Low Profile Reflex Sight fit for 20mm rail mount, waterproof, nitrogen filled and capable to hold recoil from caliber .223/5.56 to .308/7.62. 30cm submersible for 15 minutes and 800g - 1000g shock resistant."
BO-SSR2301-BK