3D printed Airsoft GBBR | Bren 3 MWS assembly

Assembly video of my 95% 3d printed GBBR, that was inspired by CZ Bren 3. Almost all parts (excluding screws, pins, ...)are 3D printed. All springs are homemade using 3D printed jigs and spring wire. link to 3D files: https://cults3d.com/en/3d-model/vario... link to spring making jigs: https://cults3d.com/en/3d-model/tool/...