A&K m249 with warfet

I'm getting rid of my A&K M249 with fitted warfet. It comes with a fore grip, built in bi-pod, a nutsack mag, and a box mag, and sling. The zip has gone on the nut sack, and the box is modified with a push button for feeding. Warfet is fitted and the controller is with it. There are two batteries for the nutsack, and chargers. I'm looking to ideally trade for a M4/416 Other wise £200 ono