Firearms

The AK-47 · Deep Dive

The AK-47

Most of what everyone knows about it is wrong — and the arithmetic in its own build documents disagrees with itself.

The most-produced rifle in history, told against its own folklore: who actually designed it and what Zaitsev contributed, why the first stamped receiver had to be abandoned, how to read a rifle and tell the makers apart — and a full parts-kit build on a milled Yugoslav-pattern receiver, headspace to retention groove.

Photo: AK-47 type II Part DM-ST-89-01131 by Unknown (US Department of Defense) · Public domain

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    Volumes

    1. Vol 1 Overview — The Most-Produced Rifle in History
    2. Vol 2 Kalashnikov, Zaitsev, and the 1943–47 Competition
    3. Vol 3 The Cartridge — 7.62×39 mm M43
    4. Vol 4 Type 1, Type 2, Type 3 — The Receiver That Had to Be Abandoned
    5. Vol 5 The AKM (1959) — The Rifle Everyone Means
    6. Vol 6 How It Works — Long-Stroke Piston, Rotating Bolt, Deliberate Slack
    7. Vol 7 Accuracy and Reliability — What the Slack Buys, and What It Costs
    8. Vol 8 The AK-74 and 5.45×39 — Conceding the Argument
    9. Vol 9 Reading an AK
    10. Vol 10 Soviet and Russian Production
    11. Vol 11 Yugoslavia — the M70 Family
    12. Vol 12 China — the Type 56
    13. Vol 13 Romania and Bulgaria
    14. Vol 14 Hungary, Poland and East Germany
    15. Vol 15 The Rest of the World
    16. Vol 16 US-Made AKs, Imports and the Parts-Kit Era
    17. Vol 17 What a Parts-Kit Build Is, and the Law It Sits Under
    18. Vol 18 Receiver Choice — Milled, and Why That Changes Everything Downstream
    19. Vol 19 Tooling and Setup — What the Operations Actually Require
    20. Vol 20 Headspace — Set It First, and Use CIP Gauges
    21. Vol 21 Barrel Buildup Order — Four Components, One Possible Sequence
    22. Vol 22 Pressing the Barrel, and Finding a Pin Hole That Does Not Exist Yet
    23. Vol 23 The Retention Joint — Failure Modes, Hoop Stress and Groove Depth
    24. Vol 24 Verification — What Is Established, and What Is Still Assumed