Since there isnt a video for this one Ill leave some tips below for those interested.
They arrived fast, nothing was warped or bent. They are flexible and can be easily placed which was my initial worry.
When peeling off the stencil do it slowly, there are a lot of small lines that will get tangled together. If doing a glock slide for example, measure out and cut what you need from it before pulling it all apart.
It was a whole lot easier to just do a base coat for the line color you want. After that, peel the stencil. Leave all the lines on the white back paper. Go down the lines ( mimic the spacing and pattern they are in) and lay them down on your project. It takes time but if you go row to row you'll get your desired outcome.
If you want to see pics of mine ( done on an MP40) go to IG cool_train_facts feel free to DM me and Ill help you out!