Youtube hearted comments of (@chriskehrer3717).

  1. its a newer model of the 47, its like asking whats the difference between a '99 f150 and a 2012 f150
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  2. The barrel length of the AK-47 is 415 mm (16.3 inches) and is similar for the AK-74 except for the AKS-74U model which is 210 mm (8.3 inches). The AK-74 barrel has a chrome-lined bore and 4 right-hand grooves at a 200 mm (1:8 in) rifling twist rate. The front sight base and gas block were redesigned.
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