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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
Available Merchants(1)
Prices checked
Stock Alert
October 2026 on GunPartPicker
Brownells Brn-15® M4 Stripped Lower Receiver ranked #335 of the 588 lower receivers builders added on GunPartPicker in October 2026. Builders have added it to their builds on GunPartPicker. Since April 2026, it ranks #676 of the 1,217 lower receivers builders have added.
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 37 retailers
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Frequently Built With
The part most often added in each category by the builds that include this one
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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 builds →Builds in the community that include the Brownells Brn-15® M4 Stripped Lower Receiver
| Build | Parts | Total |
|---|---|---|
 | 17 | $1289.98 |
 | 24 | $736.84 |
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