A useless, cruel and unwinnable war in Vietnam didn't keep Will Eisner from his patriotic duty. He drew a comic book maintenance manual for the M16A1, a famously temperamental rifle that unfortunate GI's had to beta test with their lives. I assume they thought a livelier operating guide would make the end users (i.e. those fighting and dying) more likely to read it, which was of outsize importance as the first batch of M16A1s needed a lot of care to function properly. Care that was impossible to provide in rain-soaked Indochina. Whoops.
I don't know how it was received by the grunts, but as a design chairguy I'm all about the blaze orange highlights and adorable legs and faces on everything. The copy is a crackup but you can't argue with the layout and flow. Also notable: the comic is 16 pretty-dense pages, which itself was a kind of admission that the gun was a buggy piece of shit. Excerpts below, and be sure to download the full comic.
Well, super racist, but that comes with the format. I don't know what this panel illustrates (HA!) more:
1) a rifle so apocalyptically unreliable that an official manual literally tacks on "or whatever" as shorthand for the infinitude of things that could make it fail, or
2) TRADOC leadership so out of touch that the official course of action for clearing a jam is "read the training manual that we're sure you dragged out into the steaming, lethal jungle."
Tried and true way of getting flinty infantrymen to take care of their kit: anthropomorphize it as a tiny, winking dame.
This seems quaint for 1969.