most US made guns & few foreign companies (HK, Sig Sauer, Glock) long & handguns come with locks.
new guns that don't come with locks, that i can remember: (other than used or consigment)
Rock Island Armory
Colt (AR rifles)
"The gun has played a critical role in history...an invention that has been both praised and denounced...served hero and villain alike...and carries with it moral responsibility. To better understand the gun is to better understand history."