Shooting accurately at 300-400m with an AK chambered in 7,62x39.Is it a myth or just the truth? The real accuracy of the AK platform is a matter of discussion since its invention-usually defined as very poor. In my opinion, a well modified AK rifle, chambered in 7,62x39, can be accurate till 400m(I mean...average usage...using iron sight till 200m (220 yards), using a optics at 200+ m). Assuming that building your own gun is far better than buying one(In terms of quality), you can reach a high level of accuracy by taking in consideration the following factors: WHAT CAN IMPROVE THE ACCURACY OF AND AK(7,62x39)? BARREL LENGHT Usually, the standard barrel length an AK is about 415mm.You should replace it with a 50-100mm longer,possibly match-grade(May sounds weird, but trust me, they exists!).The barrel is going to be heavier, but it will affect positively the accuracy GAS TUBE & GAS BLOCK The gas tube must not be too tight, the gasblock must not exert any pressure/stringing effect on the barrel. BOLT CARRIER The bolt carrier should be lightened by drilling a couple of holes in it(ZASTAVA M21 LIKE)-a lighter bolt mean less moving mass, this make the rifle cycle faster and more controllable during rapid fire(=more accurate).A rubber-bolt-stop can be also usefull. TRIGGER GROUP An high-grade aluminium trigger group is far better than the default steal one.An aluminium trigger needs 32 ms to hit the striker, the steal one 63 ms. Faster trigger=More accuracy(E.g. you have less time to move the rifle, the target has less time to move and let you miss it) TRUNNIONS The trunnions MUST be aligned.This is simply a MUST have for any rifle.Because you cannot expect that your rifle will be accurate, if your buttstock is not aligned with the barrel(This is critical especially in whe the receiver is milled) BUTTSTOCK It must fit your arms and face.Each shooter has a different arms length, cheek position and eye-relief point.Never underestimate the importance of a good buttstock, it is not just a matter of comfort/tactical effectiveness.I suggest you to try several buttstocks to figure out what is the one that fits you. SIGHTS Upgrade/replace the sights as soon as possible.The default sight are a very "crude" thing.Even if you stick to the iron sights, there are some very nice and improved iron sights out there-even compatible with the AK platform. ACCESSORIES AND AMMO Let's face it...a muzzle brake/muzzle-climb limiter can be very a useful accessory during rapid fire.So can be a foldable bipod(tactical foregrip). The ammo must no be cheap.Cheap things never offer you the best performance. Fell free to comment this post.I would be glad to hear you opinion(and why not....learn something new).