Hello, I believe that you have a problem, G40k is a prototype rifle and the purpose is that every prototype is different from others, why? Simply to finalize the final rifle! You compares these rifles like
View attachment 109299 98K which were made in 16 millions ex! Difference are on barrels, sights,, the buttstocks... V81 in MA is different from 18 in MO! And those who are in France are also; I'm 45 years old, I am a collector, and as all the Européans collectors, NEVER hear that G40K was sold in Europe! (and France...)
Please look the pictures, USA are not the only country to have original G40K.
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Greetings from France