I have a gen 2 Glock 17. Serial # BGM 4XX, I would like to trade for a gen 3 or 4 Glock 19, gen 3 or 4 Glock 17 or a M&P 9 full size. My Glock is in good condition, unknown round count. New springs were installed. Has night sites but they are dim. Ghost connector included but not installed...