Door lock for a Legance 3 patio door type DDSG-TRI-K-36

A home owner from Pottstown,Pa says:
Do you have this lock and how hard is it to repair yourself. Thank you Also what is this part called?
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Bob from SWISCO responded:

This reminds me of the Commercial Door Flushbolts we carry, out 79-096 or 79-093, but I have doubts these are what you need. Otherwise, you might need to see if a hardware store carries this flushbolt. I apologize for any inconvenience. 

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