K40 weighs 26 oz... Kahr P40 is same size and capacity but weighs 18.7 oz...It's a general trend away from all-heavy-metal guns into polymers and light alloys... It's happening throughout industry in general, not just with guns. The P40 is also a little cheaper. Lighter AND cheaper... Most Kahr fans will opt for a P40. I'm wondering... when you sell your K40 are YOU going to buy a lighter gun?... or... haven't you been buying lighter guns lately, in general? It's an evolutionary trend.