See How the Shield and Gauntlet Works
Grant Ihamara said he had to work for five whole days on a 3D printing of all parts of the gauntlet. He also stated that he spent over 76 hours assembling, cleaning, wiring, programming and painting it to make it look authentic and for it to work perfectly. The gauntlet has a five-and-half watt pop-up blue laser that Grant managed to fix inside the compact gauntlet that was already filled up. This laser is the most powerful one you will legally get online.
Grant said that if he was to build a replica of the gauntlet, he will want to make the laser more powerful, and that may mean going for an industrial-grade laser as that will be giving the gauntlet a stronger shooting power.