TLOU Airsoft shows the transformation of an older Rossi Neptune airsoft rifle using custom 3D-printed parts made from ABS resin. He demonstrates how high-quality prints can give a budget or dated piece of equipment a modern, high-end look without breaking the bank. He swaps out several components, including a new M-LOK handguard featuring his own brand logo, a hand stop, and a Hydra-style mount for a mini red dot.