April 2, 2016 by: Dacia DalyUp to 60% Off Select Barska Safes & Optics = Waterproof Monocular Only $39.99! Today, April 2 only, you can snag up to 60% off select Barska Safes & Optics. One nice deal we spotted is this Barska Blackhawk Waterproof Monocular on sale for just $39.99 (reg. $100!). Even better, get free shipping on any order of $49 or more OR snag FREE 2-day shipping with Amazon Prime.