Blem PSA Complete Lower 300BO, JAKL Classic EPT, Black

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Palmetto State Armory Blem PSA Complete Lower 300BO, JAKL Classic EPT, Black - Lower Receiver for AR-15

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Palmetto State Armory

Overview

The Blem PSA Complete Lower in 300 Blackout is a fully assembled lower receiver designed specifically for the AR-15 platform. Constructed from 7075-T6 aluminum and featuring a forged style, this lower offers the durability and strength needed for robust builds. With a trigger pin diameter of .154, it is compatible with a wide range of aftermarket components. This lower is commonly used in pistol builds chambered in 300 Blackout, making it an excellent choice for those looking to create a compact, high-performance firearm.

Specifications

SKU51655130942B

Caliber300 Blackout

AssemblyComplete

PlatformAR-15

ColorBlack

StyleForged

Material7075-T6 Aluminum

Trigger Pin.154

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Blem PSA Complete Lower 300BO, JAKL Classic EPT, Black

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Build history on GunPartPicker

Builders have been adding the Palmetto State Armory Blem PSA Complete Lower 300BO, JAKL Classic EPT, Black to their builds on GunPartPicker since January 2026. All time, it ranks #616 of the 1,141 lower receivers builders have added. Builds with this lower receiver are nearly all chambered in 300 Blackout, mostly on pistol-length gas (86%, then mid-length 14%), and nearly all AR-15.

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Updated Nov 1, 2026 · from real builds on GunPartPicker