The AK 74 Russia's attempt to duplicate the .223/5.56 in 1974. Now just my very basic knowledge is the 5.45x39 a true .224 diameter or .221?? Can you get components to reload this caliber or just cheaper to shoot commercial stuff??Having my Mini-14 .23/5.56 then at the LGS looking at the AK 47's they are nice a nice addition to a Mini-14 or any AR-15 etc. Seeing on You Tube on the AK74 & 5.45x39 looks like a very similar ctg when compared to the .223/5.56. My interest is having a AK platform rifle, the 5.45x39 in recoil would be less compared to a 7.62x39. My use strictly recreational use. Seeing the basic AK open sights ok can a scope be mounted on a AK47/74?? Opinions & comments welcomed thx in advance!!!!