I'm over 50 and carry several different handguns depending on my mood. They include Glock 23, Sigma 9ve, Sigma 40ve, CZ 75, CZ Rami, Kahr CW9, and Sig P250 subcompact. My favorites are the Sigma 40, the Rami and the Sig.
The Smith Sigma 40ve is the first handgun I bought several years ago. It's trigger was very smooth out of the box. I have run everything through it including semi wad cutters and have never had any kind of jam. It's not the best gun I have IMO, but it is the best gun I have for concealed carry.