Sear Spring 1911
this cylinder and slide reduced spring is supposed to lower your trigger pull by 1 1/2 lbs.
now i tried one. i didn't get 1 1/2 lbs shaved off i got less than a half pound.
my triggers were at 4lbs to begin with. i think this spring might give better results on a stock set up.
notice it got glowing reviews. it costs only $1 more than the excellent wilson combat spring. for $6.99 your certainly not risking a lot of bread , worth a try. i would try the S&W hammer first.