American Defense UIC Billet Lower Receiver - Ambidextrous
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American Defense
Overview
The American Defense UIC Billet Lower Receiver is a stripped lower designed for the AR-15 platform, crafted from billet aluminum for enhanced strength and precision. Its ambidextrous controls make it suitable for both right- and left-handed shooters, providing versatility in handling. This lower receiver is a solid choice for a variety of builds, particularly those utilizing a carbine gas system and multi-caliber configurations.
Specifications
Available Merchants(3)
Prices checked
Stock Alert
Build history on GunPartPicker
Builders have added the American Defense UIC Billet Lower Receiver - Ambidextrous to their builds on GunPartPicker. Since April 2026, it ranks #35 of the 1,217 lower receivers builders have added. Builds with this lower receiver are mostly chambered in 5.56 NATO (72%, then .223 Wylde 14%), split between mid-length (59%) and carbine-length (29%) 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 $37.99 at Sportsmans Outdoor Superstore 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 hundreds of builds that include this one
CMMG AR-15 Mil-Spec Trigger KIT
Magpul MOE K2 Grip Polymer Gray
Timber Creek Outdoors Ambidextrous Safety Selector - Black
Strike Industries Ambidextrous Magazine Release, Black - ARAMBIMRBK
Bravo Company Mfg Upper Receiver Assembly w/ Laser T-Markings, Hard Coated Anodized - 4-UR-M4
CMMG AR-15 HD Pivot and Takedown Pin Parts KIT - 55AFF3B
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 American Defense UIC Billet Lower Receiver - Ambidextrous
| Build | Parts | Total |
|---|---|---|
 | 21 | $1093.88 |
 | 24 | $1613.42 |
 | 22 | $1982.22 |
 | 16 | $1058.24 |
 | 26 | $2458.42 |
 | 20 | $1133.05 |
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