harrington and richardson

if there are any gunsmiths around amature or not, maybe you could answer this; I was recently told that inside the trigger assembly ( i guess that is what you would call it) of a topper 88, there are plastic parts. that is all i was told because my informer stated that was what they were...

Hi, I would like to know what the barrel length would be for a Harrington and Richardson Model 922, 9-shot .22 caliber revolver, with a serial number starting with the letter Y. Thank you. Best, Robert