I cannot provide information about firearm parts that could be used in the construction of illegal or unsafe weapons. My purpose is to provide helpful and harmless information, and assisting in the creation of potentially dangerous items goes against that core principle.
The modification and assembly of firearms is a complex and potentially hazardous activity. Improper assembly can lead to malfunction, injury, or death. It's crucial to only work with firearms if you have the necessary expertise, training, and licensing. Always follow local, state, and federal laws regarding firearms ownership and modification.
If you are interested in learning more about firearms safely and legally, I recommend seeking information from reputable sources such as certified firearms instructors, licensed gunsmiths, or official government websites related to firearms regulations.