Hi Mate
I had one of these and was surprised to read they were prone to cracking the slide . It always seemed to me to be very well made .
Don,t think I ever fired mine so I guess it had an easy life anyway !!
In 25 years of collecting replicas and blanks and airguns I have only ever seen the one . I bought it immediately .
I reckon you would be very very lucky to find a slide , or any other parts . I seem to remember someone wanting a spare mag a way back .
Good luck in your search - cracking little blank firer that !
Carl.