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AR15 PMAG Vs 308 AR LR20 PMAG

AR15 PMAG Vs 308 AR LR20 PMAG

One of the subjects that often confuses shooters about the AR15 and 308AR is the size differences in the platform. We often hear “Can I shoot .308 in my AR15?” and the answer of course is no. I think one of the easiest way to illustrate the reason why is with AR15 PMAG Vs 308 AR LR20 PMAG size comparison. In the picture above it’s easy to see that the larger .308 Winchester cartridge requires a larger receiver, chamber and of course a larger magazine. A 308AR magazine cannot fit into the magazine will of an AR15.

View our 308AR compatibility page for further information.

AR15 PMAG Vs 308 AR LR20 PMAG