I bought 3 chopped bulgarian ak74 barrels with rear sight block and front trunnion, from kvar for $10.00 each. I want to turn these into krinks. What do I need to complete these as krink style guns? They don't need to be authenic looking. Are the krink handguards the same length as regular H.G.'s? I suppose the Frontsight/gasblock combo is used for a krink? As I understand it, the receiver is the same. Is the topcover the same size? Any info is appreaciated!