Share: Buy & Sell Lot 4 Wing offers a Buy & Sell Lot every year, from May 1 to Septembre 30. To place an item (car, truck, recreational vehicle) on the Buy and Sell Lot you must provide proof that you are a 4 Wing/CFB Cold Lake Defence Team member (FT Public Servant, NPF Employee, Regular or Reserve Force member or a contractor working at 4 Wing). Proof of insurance and registration of vehicle are also required. A $15.00 will be charged when you register your vehicle with the 4 Wing MFRCS. Once you sell your vehicle, please return the numbered sign you were given upon registration and your $5.00 will be refunded. At the end of the season, all vehicles that have not been sold must be removed from the lot and all refunds will be given in the first week of October. For more information about the Buy & Sell lot contact the 4 Wing MFRCS at 780-594-6006.