Blasters and Lightsabers are nice, but if you want something that can take out Stormtroopers in LEGO Fortnite with a little more bang, you'll need a Bowcaster. Here's everything you need to make a Bowcaster in LEGO Fortnite.
Hit and damage with a recurve crossbow in a survival world – LEGO Fortnite Quests
You can craft a Bowcaster in LEGO Fortnite using the new Rebel Workbench. A key part of the Star Wars update, the Rebel Workbench is a must-have if you’re traveling to the Star Wars region of LEGO Island. It allows you to craft Macrobinoculars, as well as the rest of the galactic arsenal, including the E-11 Imperial Blaster Rifle and a Thermal Detonator.
Here are all the materials you need to make the Bowcaster:
Durasteel and Scrap Durasteel (which you can smelt into Durasteel at the Metal Smelter) drop from almost every Star Wars building in LEGO Fortnite, but the fastest way to farm it is to destroy the black crates near Imperial buildings or in Imperial Bases. These crates drop already refined Durasteel, and there's a supply of it in almost every Base.