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Archived [ARCHIVED THREAD] - CMMG Mk3 lower compatibility with other uppers? Aero? PSA?
Posted: 3/26/2017 12:40:17 PM EDT
Picked up a complete Mk3 lower for cheap and wanted to know what uppers fit & fiction with it.  

Mainly is Aero M5 and Palmetto PA10 would work?  Also any photos of the upper lower match up would be nice.  

I will probably build 1 upper using the CMMG upper, it's just nice to know if these other uppers will fit and work

Thanks

Archived [ARCHIVED THREAD] - CMMG Mk3 lower compatibility with other uppers? Aero? PSA?
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