LA Police Gear offers Blackhawk Men's Warrior Wear Short Athletic Shorts in Grey or Black for $7.99. Coupon code "NRA" cuts the price to $7.59. With $4.25 for shipping, that's $27 off list and the lowest total price we could find. They're available in sizes S to XXL, although not in all size/color combinations.
Nordstrom cuts up to 50% off a selection of Nike apparel and shoes, with prices starting from $10.05. (Prices are as marked.) Plus, all orders receive free shipping. Some sizes are limited. A couple of best bets: