Upper Builds by Caliber
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.22 Mag AR-15 Upper Builds
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.22-250 LR-308/AR-10 Upper Builds
- .223 Rem AR-15 Upper Builds
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.45 ACP AR-15 Upper Builds
- 10MM AR-15 Upper Builds
- 8.6 Blackout AR-15 Upper Builds
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12.7x42 Upper Builds
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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
