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Phillip T. asked 7 years ago:
Phillip, The AR platform can be adapted to many different calibers. The most common are .223 Remington / 5.56x45mm, .300 AAC Blackout / .300 Whisper, 6.5 Grendel, 6.8 Remington SPC, 5.7x28mm, 7.62x39mm and .458 SOCOM.
James G.
7 years ago
223 Remington / 5.56x45mm, .300 AAC Blackout / .300 Whisper, 6.5 Grendel, 6.8 Remington SPC, 5.7x28mm, 7.62x39mm and .458 SOCOM.
Randy I.
7 years ago
