RUGER Complete 5.56x45mm/.223 Remington, Black Anodized - 8516
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Ruger
Overview
The Ruger Complete Lower Receiver is an essential component for your AR-15 build, designed specifically for the 5.56 NATO caliber. This complete assembly features a hardcoat anodized finish over durable 7075-T6 aluminum, providing both strength and a sleek black appearance. It is commonly utilized in mid-length gas system builds, offering a reliable foundation for your custom firearm.
Specifications
Available Merchants(3)
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Build history on GunPartPicker
Builders have been adding the RUGER Complete 5.56x45mm/.223 Remington, Black Anodized - 8516 to their builds on GunPartPicker since February 2026. All time, it ranks #667 of the 993 lower receivers builders have added. Builds with this lower receiver are mostly chambered in 5.56 NATO (67%, then .223 Wylde 17%), mostly on mid-length gas (67%, then rifle-length 33%), and nearly all AR-15.
It was out of stock everywhere we track for all of August 2026, and today none of the 3 retailers we track has it in stock right now. Listed prices start at $273.99 at Brownells for when it comes back.
Updated · from real builds on GunPartPicker · Prices checked · refreshed daily across 35 retailers
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Frequently Built With
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Build Configuration Breakdown
Aggregated and anonymized data showing how builders use this product
CaliberBased on real build data showing which calibers builders choose alongside this product.
Gas SystemBased on real build data showing which gas system lengths builders use with this product.
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