this set will have some low rails for the shrouds that I made in the past.
(more will be added here over time)
and there is a drill template that will help you drilling the holes in the right place.
I show here in this video how to update your older shrouds to the low rail version.
again to mount the low rail do you need , Flat Countersunk Head M3 Screws in a lengt of 14mm
drilling holes for your m3 bolts is best done with a 2,5mm drill bit.
I will also add a dril jig for the uppers so you can add a view more holes in the upper like the MKII haves so it also can have a bolted on Low rail
The author hasn't provided the model origin yet.