AR-15 Upper Components Check List

Components needed for complete piston conversion build. A complete uppers list that you can check off to ensure you have all the components needed to complete your piston upper build.
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.308 Gas Piston Systems

Black Rifle Arms® .308 Piston Uppers vs .308 Piston Conversion

As of late, we have been getting a lot of inquiries if we have a .308 gas piston conversion, so we feel the need to address it. 

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