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Yes it will

The AA120 features the Archangel 6-position, M4-style adjustable butt-stock that can be installed on all commercial-series buffer tubes. https://promagindustries.com/stocks/399-archangel-six-position-collapsible-butt-stock-for-ar-series-with-recoil-pad.html

Also finding this to be a commercial fitting. May want to contact Buds directly to clarify.