Only "Lite Rack" designation I'm aware of is the LCP II, which is a blowback .22 versus a locked breech .380.
S&W has their EZ line of Shield pistols. I assume they have modified geometry and lighter recoil springs to make them easier to cycle by hand, but I haven't handled any to tell for certain.
Huh. Learn something new every day. Well, reading the ad copy, lighter recoil spring and cocking wings seem consistent between the LCP .22 and this offering.