It's a bit confusing but what he is calling Canadian magazines are magazines designed for places like California and also as unluck would have it Canada.
The factory 10 round magazines are not neutered standard magazines but are in fact different and that difference is notable in the way the follower tilts and does not engage the hold open mechanism with enough strength.
In the video the Wolverine crew refers to them as "single stack" magazines and it appears they are as there is no need for double stack when you only want 10 rounds max.
Thanks for the reply, that makes sense. So legit US factory glock mags actually pinned is our best bet I guess. I have nothing that runs glock mags so I'll likely just wait to see what works best anyways.




















































