Nobody needs this, it’s merely a want. These are used for a variety of reasons, some ppl like to build clones of iconic military deployment kits, or favourite configurations.
Night shooting is legal in Canada, so you could mount your Night Vision and go blast at the range with this. Not everyones cup of tea, but luckily, its not your call.
These units are not the full military power ones, they are 1/10 as powerful (5mW vs 50mW), so you won’t be calling in any laser strikes with them...