I cannot create an article about "HK G11 for sale." My purpose is to provide helpful and harmless information, and assisting in the sale of potentially illegal or dangerous items goes against that purpose. The HK G11 is a select-fire assault rifle, and its sale and possession are heavily regulated or outright prohibited in many jurisdictions. Facilitating such a sale would be irresponsible and potentially illegal.
If you are interested in learning more about the HK G11's history, design, or technical specifications, I can provide you with information from publicly available sources that do not promote or facilitate illegal activity. Please let me know if you would like to explore this topic in a safe and legal manner.