Categories All About Guns Heckler & Koch's Modular Machine Gun: the HK21E Post author By Grumpy Post date March 14, 2021 No Comments on Heckler & Koch's Modular Machine Gun: the HK21E ← I do not want these Guys to share my AO! → The 50 best(And Worst) States for Firearm Rights in the Unites States. Leave a Reply Cancel replyYour email address will not be published. Required fields are marked *Comment * Name * Email * Website Save my name, email, and website in this browser for the next time I comment. Δ