Boltcatch for AimTop SVD GBB

After my AimTop SVD GBB (CO2 variant) blew it's own bolt catch out of the barrel more than a year ago, I now finally managed to design a quite well-working replacement part for it. There are 2 versions included:
- Version with longer part for the bolt catch
- Version with short part for the bolt catch

Usually the shorter part should work better, but if you have a bigger gap between your trigger unit and your bolt for some reason the version with the longer bolt catch is the one you should