I didn't weigh them, but even though they aren't light, they definitely weigh less than the stock front struts and rear shocks/springs. However, the ones I had on both were H & R springs... they aren't light, but work great and are definitely cheaper to buy and to install than Megan Coilovers.
My Flex H & R springs are for sale, but have to dis-mount them, hopefully to take to Iowa for possible sale and Ship.