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LR 308 lower and stock. For BCA side charge uppers.

Home of the 3d printed UMP, UMforthePoors 7.8MiB Released January 16, 2023, 11:42 AM 0.010LBC 0 Reposts
For BCA side charge uppers. Have not tested with others. Remix of Hoffman's LR308 and MrBumpy's mono-poly