I have a gen 2 glock 23 (40 cal) and a gen 3 glock 19 (9mm), I think the .40 cal would be a better nightstand gun and would like to swap the lower gen 3 from the 9mm glock 19 for the tactical rail.
Can I do this and if so should I simply take the uppers and switch them?
Can I do this and if so should I simply take the uppers and switch them?