Looking for Spring powered (recoiling) .177 pistols

BSF S20, Haenel etc

Looking for clean user example's that will be put into service, will consider anything interesting and "relatively" accurate,

Please no LP53's or Webley's (I already have a few) or FWB 65's etc or Diana Mod 6 Giss pistols as not suitable for purpose.

w.h.y

Thanks