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M16 Rifle 20rd Magazine

  • FSN
  • 1005-056-2237
Throughout most of the Vietnam War the M16 rifle magazine had a capacity of twenty 5.56mm cartridges, however, a thirty-round version was introduced towards to the end of the conflict. The metal 20-round magazine weighed only 0.2lb when empty and 0.7lb when loaded.

Natick Labs specifically developed the M1956 / M1967 M16A1 cases and the Lightweight Ammunition Vest for carrying the 20-round magazines, though riflemen in Vietnam also often used bandoleers and canteen covers etc.

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