Walmart has Revoltinator Nerf Zombie Strike Toy Motorized Blaster with 18 Nerf Darts for $28. Choose free store pickup to save on shipping, otherwise, shipping is free on $35 or more.
Amazon has it as well. Shipping is free with Prime.
Target also has it for $28. Stock is low. Shipping is free. Note: Target RedCard holders save an additional 5%.