Are you like me with a grip so high and tight that you rarely get the last round hold open because you ride the slide lock? Well this may help in that area. I bought one for my current build and I'll let you know how it works for me but for now here's an interesting review I found.
And here are a couple of links to purchase Big Tex Ordnance (use code GPARTS at BTO for 10% off)
Glocks (G43, G43X, G48) https://www.bigtexordnance.com/product/kagwerks-extended-and-raised-slide-release-for-slim-line-glocks-g43-g43x-g48/
Gen 3 and 4 Glocks
https://www.bigtexordnance.com/product/kagwerks-extended-raised-slide-release-for-glock-gen-3-4/
Gen 5 Glocks
https://www.bigtexordnance.com/product/kagwerks-extended-raised-slide-release-for-glock-gen-5/
I don't know about this; I would have to feel one before I would spend $50 on one.
I haven't had any problems shooting with the old style,
but I can see how it would help guys that do.