Ok, first : Glock 19 KSC ! Same size than the Glock 23, but semi auto.
Glock 23 from KJ : Same than the Glock 19 but FMU.
Glock 23F from KSC : Same size than the glock 19 from KSC or Glock 23 from KJ
EXCEPTION : FULL AUTOMATIC or SEMI AUTO ! Cool fonction with a extended mag ! Trust me !
