Info for a 111mm lock mod

[Cauldronborn]

Hi folks

I've been away from SAK's for a while but have recently regained an interest in them. While browsing youtube I came across this video  showing someone disabling the slide lock on a 111mm Hercules.

https://www.youtube.com/watch?v=KFdtEW0iv1I

I haven't had much to do with the 111mm Vic SAK's as aren't legal to carry in the UK without a good reason (work ect) and the one I do have is a forester with a liner lock so I don't know if this still possible with the more recent models.Could anyone here tell me if this can still be done?

If it can, then I think I would be getting one or two models as I've found the more robust tools on my forester to be very useful.