Answers for So can you use a regular AR15 lower with this upper ?

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CMMG + Gun Parts CMMG, Inc Gun Parts + DISSENT CMMG DISSENT Gun Parts CMMG DISSENT 5.7x28mm, 6.5in Upper Receiver CMMG DISSENT 5.7x28mm, 6.5in Upper Receiver Q&A Question - So can you use a regular AR15 lower with this upper ? CMMG + Gun Parts CMMG, Inc Gun Parts + AR 15 Parts CMMG, Inc AR15 Parts + AR15 Upper Receivers CMMG, Inc AR15 Upper Receivers + DISSENT CMMG DISSENT AR15 Upper Receivers CMMG DISSENT 5.7x28mm, 6.5in Upper Receiver CMMG DISSENT 5.7x28mm, 6.5in Upper Receiver Q&A Question - So can you use a regular AR15 lower with this upper ? CMMG + Gun Parts CMMG, Inc Gun Parts + Rifle Parts CMMG, Inc Rifle Parts + AR 15 Parts CMMG, Inc AR15 Parts + AR15 Upper Receivers CMMG, Inc AR15 Upper Receivers + DISSENT CMMG DISSENT AR15 Upper Receivers CMMG DISSENT 5.7x28mm, 6.5in Upper Receiver CMMG DISSENT 5.7x28mm, 6.5in Upper Receiver Q&A Question - So can you use a regular AR15 lower with this upper ? CMMG + Gun Parts CMMG, Inc Gun Parts + AR 15 Parts CMMG, Inc AR15 Parts + DISSENT CMMG DISSENT AR 15 Parts CMMG DISSENT 5.7x28mm, 6.5in Upper Receiver CMMG DISSENT 5.7x28mm, 6.5in Upper Receiver Q&A Question - So can you use a regular AR15 lower with this upper ? CMMG + Gun Parts CMMG, Inc Gun Parts + Rifle Parts CMMG, Inc Rifle Parts + AR 15 Parts CMMG, Inc AR15 Parts + DISSENT CMMG DISSENT AR 15 Parts CMMG DISSENT 5.7x28mm, 6.5in Upper Receiver CMMG DISSENT 5.7x28mm, 6.5in Upper Receiver Q&A Question - So can you use a regular AR15 lower with this upper ? CMMG + Gun Parts CMMG, Inc Gun Parts + Rifle Parts CMMG, Inc Rifle Parts + DISSENT CMMG DISSENT Rifle Parts CMMG DISSENT 5.7x28mm, 6.5in Upper Receiver CMMG DISSENT 5.7x28mm, 6.5in Upper Receiver Q&A Question - So can you use a regular AR15 lower with this upper ?

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CMMG DISSENT 5.7x28mm, 6.5in Upper Receiver

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Answered by Yukonsooner, member, from PA, United States, on October 30, 2025

Yes. The upper comes with a buffer plate which has a 1913 rail for stock or brace mounting, if you choose.

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CMMG + Gun Parts CMMG, Inc Gun Parts + DISSENT CMMG DISSENT Gun Parts CMMG DISSENT 5.7x28mm, 6.5in Upper Receiver CMMG DISSENT 5.7x28mm, 6.5in Upper Receiver Q&A Question - So can you use a regular AR15 lower with this upper ? CMMG + Gun Parts CMMG, Inc Gun Parts + AR 15 Parts CMMG, Inc AR15 Parts + AR15 Upper Receivers CMMG, Inc AR15 Upper Receivers + DISSENT CMMG DISSENT AR15 Upper Receivers CMMG DISSENT 5.7x28mm, 6.5in Upper Receiver CMMG DISSENT 5.7x28mm, 6.5in Upper Receiver Q&A Question - So can you use a regular AR15 lower with this upper ? CMMG + Gun Parts CMMG, Inc Gun Parts + Rifle Parts CMMG, Inc Rifle Parts + AR 15 Parts CMMG, Inc AR15 Parts + AR15 Upper Receivers CMMG, Inc AR15 Upper Receivers + DISSENT CMMG DISSENT AR15 Upper Receivers CMMG DISSENT 5.7x28mm, 6.5in Upper Receiver CMMG DISSENT 5.7x28mm, 6.5in Upper Receiver Q&A Question - So can you use a regular AR15 lower with this upper ? CMMG + Gun Parts CMMG, Inc Gun Parts + AR 15 Parts CMMG, Inc AR15 Parts + DISSENT CMMG DISSENT AR 15 Parts CMMG DISSENT 5.7x28mm, 6.5in Upper Receiver CMMG DISSENT 5.7x28mm, 6.5in Upper Receiver Q&A Question - So can you use a regular AR15 lower with this upper ? CMMG + Gun Parts CMMG, Inc Gun Parts + Rifle Parts CMMG, Inc Rifle Parts + AR 15 Parts CMMG, Inc AR15 Parts + DISSENT CMMG DISSENT AR 15 Parts CMMG DISSENT 5.7x28mm, 6.5in Upper Receiver CMMG DISSENT 5.7x28mm, 6.5in Upper Receiver Q&A Question - So can you use a regular AR15 lower with this upper ? CMMG + Gun Parts CMMG, Inc Gun Parts + Rifle Parts CMMG, Inc Rifle Parts + DISSENT CMMG DISSENT Rifle Parts CMMG DISSENT 5.7x28mm, 6.5in Upper Receiver CMMG DISSENT 5.7x28mm, 6.5in Upper Receiver Q&A Question - So can you use a regular AR15 lower with this upper ?