Looking to trade an Sig M18 9mm. Less than 100 rounds through it. Comes with factory Sig night sights, 1 17 rd mag and two 21 round mags. Also have a Galco kydex holster to go with it. Looking to trade to something in 10mm or .45acp. Primarily looking at polymers. Glock 20 would be my first choice. Thanks for looking.