I've Gen 4 Glock 26 w/ 30rds fired only and in like new condition. No wear or scratches. A guy from my local area offered me to trade with his 200rds fired Gen 4 Glock 19 w/ slight wear from purse carry by his wife. He also wants $50 more since his gun has Glock night sight. I've Gen 3 Glock 19C but always loved the feel of Gen 4 grip. It's US made Glock. Don't really need 26 but couldn't find a reason to own 2 - G19s either. Should I trade? Any issue with US made Glock? Is this good deal for trade?