So you’re Hasbro in 1975 and everybody is cutting into your G.I. Joe profits with dolls named “Mighty Gary”, “Fighting Yank” and “Mr Action”, what do you do?You rip them off of course! That’s exactly what Hasbro did in 1975 with “The Defenders” a fairly cheap blow molded doll (whose head would later be recycled into Bulletman) who also was the perfect way to get rid of excess inventory (especially on military items).
More Manliness
AKA Brian Heiler author of "Rack Toys: Cheap, Crazed Playthings" and co-editor of "Toy-Ventures Magazine". Co-Host of the "Pod Stallions" podcast. Host of the Brick Mantooth Youtube channel, painter, designer, writer, mental health advocate, toy collector, Mego, and Mego Knock-Off enthusiast. I have large feet, ADHD and I live in Canada. Talk toys, not others. 
@brickmantooth
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I was disappointed to learn these “Defenders” toys where neither the 60s TV series (E.G. Marshall action dolls!) or the 70s Marvel series. Oh well.
I had that tank when I was a boy. Never knew what line it went to. Twenty-Five year old mystery solved. Thank you
They recycled the head mold for Bullet man.