Will a rifle forearm fit on a CMMG Sierra 22lr Upper? [Archive]

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JasonWilliam

July 6, 2012, 10:30 AM

Hey guys. I have a CMMG Sierra 22lr dedicated upper, which comes with a carbine forearm. I have a rifle forearm I'd rather use. Does anyone know what might be involved in performing such a conversion, if its possible at all?

Thanks!