See, sometimes Airsoft Apps like HopUp can be just an abysmal place to try to buy and sell. No, a new barrel in your CM16 does not make it worth 400 quid. But every once in awhile something amazing happens - you get a Krytac LMG upper, r-hopped inner barrel, and two box mags for 180. Or you get 5x Gen 1 SR-25 P-mags for 100. Or, like this time, you get 2x leak free KWA Vector Short Mags for the low price of 110 quid. Now thats a bargain haha.