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Palmetto State Armory
Overview
The PSA AR15 Complete Classic SBA4 Lower is a fully assembled lower receiver designed for the AR-15 platform, featuring a forged construction from 7075-T6 aluminum for durability. It is compatible with multiple calibers and comes with non-ambidextrous controls, making it a straightforward choice for builders looking for a reliable base. This lower typically pairs well with carbine gas systems, fitting seamlessly into a variety of multi-caliber builds.
PSA AR15 Complete Classic SBA4 Lower
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Builders on GunPartPicker first added the PSA AR15 Complete Classic SBA4 Lower to a build in February 2026.
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