This flashlight holder will fit all glock 17 and 19 models,
Real guns and any realistic designed 3D printed and bb guns.
Flashlight is from ebay called E520 it uses one 14500 cell,
its outher diameter is 17.5mm so many other small flashlights will also fit.
The screw is M3 x 12mm and a M3 nut
Print using support and 100% infill so it is as strong and stabe as possible.