What Caliber Does an AR-15 Shoot? Understanding AR-15 Ammunition

The Basis: Understanding the Core Calibers At its coronary heart, the AR-15 is most ceaselessly related to two main calibers: .223 Remington and 5.56x45mm NATO. These two rounds are sometimes mentioned in the identical breath, and for good cause. They share very related dimensions and may usually be used interchangeably. Nonetheless, delicate variations exist, and … Read more

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