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Is there a specific lower that this upper will mount to? According to someone’s review that the machining is off, just curious if they all are off. — 1 Answer

by Derrick, from AL, United States Asked on March 1, 2022

Name CBC Industries AR-15 Upper Assembly, .223/5.56, 16in (1)
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Answered by Hunter, Gear Expert, from OH, United States, on April 08, 2022

The CBC Industries AR-15 Upper Assembly, .223/5.56, 16in is compatible with Mil-Spec lower receivers. If you have a Mil-Spec lower the CBC Industries AR-15 Upper Assembly, .223/5.56, 16in should work with it.

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Last updated 2025-11-12 UTC.