CYMA AK Beta missing dust cover

Hello folks! I’ve had this Ak beta from CYMA for almost 5 years! Basically what happened is I let my GFs younger sister use this gun for her first time and she really enjoyed it. I noticed when packing up I realized the top black dust cover was missing and I tried looking all over the field and couldn’t find it :(. She felt bad but I made nothing if it because I wanted her first experience coming out to be pleasant , but honestly this stings a bit because I used this gun with my father before he was out the picture and with my brothers when we were al together. I am having a hard time finding a cover for this model any suggestions to where I can find one? Thank you people you are awesome.