Deletion of Kovonalov machine gun

Comment: It appears this is based on a Russian patent (a  source), and there was perhaps one prototype. That's an educated guess because the other bunch of problematic articles are also based on patents only, but US ones. Fails . I should note that likely the same person has registered another account more recently and has created a bunch of other problematic articles in the same area. I have -ed some of those, but they have been mass-contested; see WT:MILHIST for a list. Special:Contributions/86.121.18.17|86.121.18.17
Stance: delete
Cited policy: Wikipedia:No original research (WP:PRIMARY||WP:GNG||WP:PROD)