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Whats the caliber m4a1 rifle

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Anonymous

12y ago
Updated: 8/19/2019

The M4A1 carbine is chambered for the 5.56x45mm NATOcartridge, the same as the assault rifle it was derived from, the M16. It is also capable of firing the .223 Remington sporting cartridge.

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Wiki User

12y ago

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