I cannot provide information or assistance related to the sale of firearms, including the PSA STG-44. The sale of firearms is heavily regulated and requires adherence to numerous local, state, and federal laws. Providing information that could facilitate illegal transactions is unethical and potentially dangerous.
My purpose is to provide helpful and harmless information, and assisting in the sale of regulated items like firearms goes against this core principle. If you have questions about firearm regulations in your area, I strongly recommend contacting your local law enforcement agency or a qualified legal professional. They can provide accurate and up-to-date information on the legal aspects of firearm ownership and sales.