This - and also the Glock 36.hirundo82 wrote:The small size and low recoil are pretty much mutually exclusive requirements, but if I were looking for guns that were the closest to your criteria I'd look at compact polymer guns--XD45 compact, M&P45c, Glock 30.
also consider - to a lesser degree, IMHO, but you might like them better ...
Sig 220 compact
Beretta PX in 45
HK45 compact