Chris Kyle uses many different kinds of guns over the course of American Sniper, and his role and subsequent fame as a sniper (a highly skilled soldier and marksman who shoots enemies from a concealed position) is essentially defined by guns. In general, guns symbolize maturity, machismo, and masculinity in the book. Kyle would even go on to write another book called American Gun: A History of the U.S. in Ten Firearms.
Guns Quotes in American Sniper
It was my duty to shoot, and I don’t regret it. The woman was already dead. I was just making sure she didn't take any Marines with her.
It was clear that not only did she want to kill them, but she didn't care about anybody else nearby who would have been blown up by the grenade or killed in the firefight. Children on the street, people in the houses, maybe her child. She was too blinded by evil to consider them. She just wanted Americans dead, no matter what.
It was a kid. A child.
I had a clear view in my scope, but I didn't fire. I wasn't going to kill a kid, innocent or not. I'd have to wait until the savage who put him up to it showed himself on the street.