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Palmetto State Armory
Overview
The PSA AR-15 Lower Safe/Fire - 1728 is a stripped lower receiver made from 7075-T6 aluminum, designed specifically for the AR-15 platform. This lower features the essential safe and fire markings, allowing for straightforward assembly and compliance with firearm regulations. Builders commonly incorporate this lower in carbine gas system builds chambered for 5.56 NATO, making it a versatile choice for a range of applications.
PSA AR-15 Lower Safe/Fire - 1728
Prices checked
PSA AR-15 Lower Safe/Fire - 1728 ranked #248 of the 477 lower receivers builders added on GunPartPicker in September 2026. Builders have been adding it to their builds on GunPartPicker since February 2026. All time, it ranks #265 of the 1,133 lower receivers builders have added. Builds with this lower receiver are mostly chambered in 5.56 NATO (72%, then .223 Wylde 13%), split between mid-length (42%) and carbine-length (38%) gas systems, and nearly all AR-15.
Today the one retailer we track has it in stock. Buying today, the lowest price is $79.99 at Palmetto State Armory.
Updated · from real builds on GunPartPicker · Prices checked · refreshed daily across 37 retailers
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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Aggregated and anonymized data showing how builders use this product
Builds in the community that include the PSA AR-15 Lower Safe/Fire - 1728
| Build | Parts | Total |
|---|---|---|
 | 20 | $1217.97 |
 | 12 | $501.80 |
 | 16 | $1130.39 |
 | 10 | $1139.13 |
 | 13 | $1375.81 |
2 global ratings
Top reviews
Got this lower for a budget build and it's decent. The safe/fire markings are crisp. It assembled without major issues, though the buffer tube threads were a little tight, nothing a little force and a vice block couldn't fix. Overall, a functional lower that does the job.
Used this PSA stripped lower for my first AR build. Machining is clean, and the 7075-T6 aluminum feels robust. Marked safe/fire clearly. Assembled it with parts from BCM and Aero, everything fit up fine for my 5.56 carbine build. Solid foundation for any AR-15 project.
