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Radical Firearms
Overview
The Radical Firearms RF-15 Stripped Lower Multi-Cal is a lower receiver. Compare prices from multiple merchants and find the best deal.
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Builders have added the Radical Firearms RF-15 Stripped Lower Multi-Cal to their builds on GunPartPicker. Since April 2026, it ranks #427 of the 1,217 lower receivers builders have added.
Updated · from real builds on GunPartPicker
We ranked every lower receiver by how often it shows up in real builds on GunPartPicker.
Read the guide: AR-15 Lower Receiver Trends →Check it against the live catalog:
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