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All AR-15 & LR-308/AR-10 | Upper Builds by Caliber

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5.56 NATO | AR-15 Upper Builds
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.300 Blackout | AR-15 Upper Builds
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9mm | AR-15 Upper Builds
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.223 Wylde | AR-15 Upper Builds
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7.62x39 | AR-15 Upper Builds
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.458 SOCOM | AR-15 Upper Builds
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.450 Bushmaster | AR-15 Upper Builds
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6.5 Grendel | AR-15 Upper Builds
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