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M4 inadequate caliber
I wonder what the characteristics of the M-4, replacing the complete upper receiver hardware from 5.56 to 7.62. The lower is universal, I have heard of one with a .50. I t seems that .50 is too much recoil for the M-4 frame. I do however, think 7.62 would not be excessive.
Manufacture venders have been using the M-16/M-4 frame for years as a selling feature. All soldiers would have instant muscle memory familiarity. The commanders would have the option to tailor his firepower for the combat environment without having to acquire and train to a new weapons system.
Just curious.
J R
DOL
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