Most pistols (bar the C2240) are well below the 6 ft.lbs mark. The C2240 is inexpensive. The trigger is basic and creaky, but very easy to improve with fine emery, moly grease and tweak to the trigger spring. The power can be reduced with a weaker hammer spring, you will get more shots from a bulb. You could fit a power adjuster (which acts on the hammer spring) in combination with a weaker hammer spring to give you the ability to fine tune tweak the power (must make sure that it can not go over the limit when set at the max spring tension). Problox on the top allow you to fit a red dot or other optics.

The C2240 in sales has extras (wood grips, problox, shoulder stock) so is above a typical used price.