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What does M16 stand for?

Updated: 11/2/2022
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11y ago

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it stands for military and 16 is its code number it 16 also means assault rifle like m14. You may also see A1, A2, and A3 on the end witch means action number (fully automatic, 3 round burst, selective fire)

Incorrect. A1, A2, and A4 indicate an adoption of a modified variant to the originally adopted design. The A2 differed from the A1 in a number of ways - not just in using three round burst rather than full auto fire, but also in using a heavier profile barrel with a 1 in 7 pitch (vs. the 1 in 12 pitch of the M16A1), different plastics used in the furniture, a different buttstock, different rear sights, and a brass deflector in the upper receiver. M16A3 was never a military nomenclature - Colt coined it. They knew that not all export customers would want to be limited to a three round burst, so they manufactured an M16A2 with an M16A1 trigger group. The A4 differs from the A2 in having an upper receiver with an integral Picatinny rail, and extended feed ramps.

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11y ago
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Q: What does M16 stand for?
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