MetalDetector.com discounts a selection of metal detectors, metal detector systems, and accessories during its Big Summer Sale. Even better, coupon code "5JJA" cuts an extra $5 off select orders of $50 or more. Plus, many options include up to three bundled bonus items for free. (Items are as advertised on the product page.) Shipping starts at $8.99, or spend $99.95 or more to bag free shipping. Some exclusions apply. Deal ends September 22. A couple of best bets, both with prices after coupon: