YMMV but I consider the S&W M&P Shield in either 9x19mm or 40 S&W fits the pocket pistol/BUG role well enough for me. I'd choose the no safety model and slide it into one of the pocket holsters available from your favorite maker.

Is life so dear, or peace so sweet, as to be purchased at the price of chains and slavery? Forbid it Almighty God! I know not what course others may take, but as for me, give me liberty of give me death! P. Henry

Deus vult!

Rhodesians all now