mlight 12x50 professional binoculars for adults, high powered roof binoculars with bak4 prism, hd fmc lens, rubber armor, waterproof, large view, low light vision, for bird watching, hunting, outdoor. 12x50 (bak4) is up for auction in Sports & Outdoors. The current bid is $13.00, 90% below the $126.99 MSRP, in New/Like New condition. Bid on this item at our Rogers - N Dixieland Rd. location before the auction closes.