Brownells Brn-15® M4 Stripped Lower Receiver
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Brownells
Overview
The Brownells Brn-15® M4 Stripped Lower Receiver is a stripped lower designed for the AR-15 platform, crafted from durable 7075-T6 aluminum and finished with a hardcoat anodized treatment for added resilience. It’s specifically configured for the 5.56 NATO caliber, making it a solid choice for builds centered around this popular round. This lower receiver is often utilized in carbine gas system configurations, providing builders with a reliable foundation for their custom setups.
Specifications
Build history on GunPartPicker
Builders on GunPartPicker first added the Brownells Brn-15® M4 Stripped Lower Receiver to a build in February 2026.
Today the one retailer we track is out of stock. Listed prices start at $69.99 at Brownells for when it comes back.
Updated · from real builds on GunPartPicker · Prices checked · refreshed daily across 10+ 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.
Builds Featuring This Part
See all 2 →Builds in the community that include the Brownells Brn-15® M4 Stripped Lower Receiver
| Build | Parts | Total |
|---|---|---|
 | 17 | $1314.85 |
 | 24 | $697.34 |
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