I have thrown my Glock 36 in my pocket. Single stack 45 but light and fluffy. Usually though it is my little Kahr P9. I have an old AMT 45 Backup that is quite small, but it is also all SS, thus a little heavier. Taurus was going to make a Totally Titanium .45 ACP in their Millenium line with a composite frame and Titanium slide. Some gun rag had the test of a prototype and it was about 17 ounces, but Taurus never made the .45, although I think they have pistols like it in 9mm.