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Ruger
Overview
The RUGER 8506 AR Lower Receiver AR 15 Rifle Multi Caliber Black Hardcoat Anodized is a lower receiver. Compare prices from multiple merchants and find the best deal.
Prices checked
RUGER 8506 AR Lower Receiver AR 15 Rifle Multi Caliber Black Hardcoat Anodized ranked #32 of the 588 lower receivers builders added on GunPartPicker in October 2026, behind the Wilson Combat Lightweight AR-10 Receiver Set Armor-Tuff, with about 1 in every 200 lower receivers added to builds. Up from #60 in September. Builds with this lower receiver are mostly chambered in 5.56 NATO (67%, then 300 Blackout 11%), split between mid-length (48%) and rifle-length (30%) gas systems, and nearly all AR-15.
It was out of stock everywhere we track every time we checked in October 2026, and today none of the 3 retailers we track has it in stock right now. Listed prices start at $89.99 at Brownells 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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