D
Dbgunslove it
Reviewed on April 27, 2026Verified with Build
perfect mate to my upper
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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
MPN8619
StyleBillet
ControlsAmbidextrous
AssemblyStripped
PlatformAR-15
CaliberMulti
MaterialBillet Aluminum
Frequently Built With
Based on build data
CMMG AR-15 HD Pivot and Takedown Pin Parts Kit - 55AFF3B
Strike Industries Extended Bolt Catch
Fortis Lightweight Enhanced AR-15 End Plate, Gold - LE-BLK-K1-GOLD
Timber Creek Outdoors Ambidextrous Safety Selector - Black
Geissele Automatics Llc Ar-15 Ssa-E X Lightning Bow Trigger
Cmmg Ar-15 Mil-Spec Trigger Kit
Build Configuration Breakdown
Aggregated and anonymized data showing how builders use this product
PlatformBased on real build data showing which platform (AR-15, AR-10, AR-9) builders pair with this product.
100%
AR-15100%
| Product | Category | Times Built Together |
|---|---|---|
| CMMG AR-15 HD Pivot and Takedown Pin Parts Kit - 55AFF3B | 18 | |
| Strike Industries Extended Bolt Catch | 13 | |
| Fortis Lightweight Enhanced AR-15 End Plate, Gold - LE-BLK-K1-GOLD | 13 | |
| Timber Creek Outdoors Ambidextrous Safety Selector - Black | 13 | |
| Geissele Automatics Llc Ar-15 Ssa-E X Lightning Bow Trigger | 11 | |
| Cmmg Ar-15 Mil-Spec Trigger Kit | 10 |
| Platform | Percentage |
|---|---|
| AR-15 | 100% |
Builds Featuring This Part
See all 6 →Builds in the community that include the American Defense UIC Billet Lower Receiver - Ambidextrous
| Build | Parts | Total |
|---|---|---|
 | 21 | $726.40 |
 | 24 | $1295.40 |
 | 22 | $1704.08 |
 | 16 | $822.96 |
 | 26 | $2202.22 |
 | 20 | $805.08 |
Customer reviews
5.0out of 5
2 global ratings
Top reviews
B
BIGBLUEDODGE1997ADM UIC billet ambi clean
Reviewed on March 6, 2026Verified with Build
American Defense UIC billet ambi lower has clean and even anodize. The ambi controls work without modification. Flared mag well speeds reloads. Mates with a quality upper with zero detectable play at the takedown pins.
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