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Diamondback
Overview
The Diamondback DB15 AR Lower is a stripped lower receiver designed specifically for the AR-15 platform, crafted from durable 7075-T6 aluminum. This lower provides the essential foundation for your build, allowing you to customize it to your specifications while ensuring a solid and reliable firearm. With its black finish, it easily integrates into a variety of aesthetic styles, and it's commonly paired with mid-length gas systems and 5.56 NATO caliber setups.
Prices checked
Diamondback DB15 AR Lower, Black - DB2228R001 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 January 2026. All time, it ranks #214 of the 1,136 lower receivers builders have added. Builds with this lower receiver are split between 5.56 NATO (50%) and .458 SOCOM (25%), nearly all on mid-length gas, and nearly all AR-15.
It was out of stock everywhere we track for all of September 2026, and today none of the 6 retailers we track has it in stock right now. Listed prices start at $86.99 at Sportsmans Outdoor Superstore for when it comes back.
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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