The stories you could tell...The @ 10 prototypes made for the 2004 SHOT Show debut were marked "HKM4".
I am not aware of any marked HK416M4 - that would make no sense.
The HKM4's are unique in that they did not have ejection port covers.
Some still remain in the Gray Room in Ashburn.
HK was prohibited from selling them based on the terms of the lawsuit by Colt BUT that does not mean that someone "forgot" about that stipulation and funneled one out to a friend.
The real collectibles are the three US Govt issue M4's modified by HK GmbH into the first HKM4 configurations with HK op rods, barrels, bolts and buffers - kind of the "missing link".
I know where one is - the upper anyway - mounted in a shadow box with a very nice military unit coin next to it. It ended up in Germany by way of the sand box and other places unknown. I should have grabbed the other two!
How about the Back cover? Besides the Nimrod photo, two of the more famous HK photos are, Jim firing the E gun over his head for the front cover, and the backwards loaded magazine for the back cover. Hey, you have to have a sense of humor.What--- the dust jacket??? :biggrin: