Elevate your AR-15 build with the Obsidian Arms OA-15C Billet Lower Receiver in Black Hardcoat. Engineered for precision and durability, this high-quality component is machined from premium 7075-T6 aluminum, delivering the strength and reliability demanded by tactical enthusiasts and competitive shooters alike.
Key Features
- Oversized Trigger Guard: Provides enhanced accessibility and comfort, ideal for gloved operation in demanding conditions.
- Flared Magazine Well: Speeds up reloads with a wider entry for magazines, reducing fumbles during high-stress scenarios.
- Billet Machining: Crafted from a solid aluminum block for superior precision, tighter tolerances, and a unique aesthetic that sets your build apart.
- Hardcoat Anodized Finish: Offers corrosion resistance and a sleek black appearance that withstands wear and tear.
Specifications
- Material: 7075-T6 Aluminum Alloy
- Finish: Black Hardcoat Anodized (MIL-A-8625 Type III Class 2)
- Weight: 9.3 oz
- Compatibility: Standard AR-15 upper receivers and components
- Design: Stripped lower receiver for custom builds
Why Choose the Obsidian Arms 15C Lower Receiver?
In the world of AR-15 accessories, the billet construction of the OA-15C addresses common frustrations like loose fits and limited customization options found in forged alternatives. Its robust build ensures long-term reliability, while the integrated features enhance handling and performance. Whether you’re assembling a duty rifle or a range-ready custom, this lower receiver provides the foundation for a firearm that performs when it counts, combining tactical functionality with professional-grade quality.
Transform your AR-15 into a precision instrument—secure the Obsidian Arms OA-15C Billet Lower Receiver today and build with confidence.
Frequently Asked Questions
What sets billet lower receivers apart from forged ones?
Billet lowers, like the OA-15C, are CNC-machined from a single block of aluminum, enabling custom features such as flared mag wells and oversized trigger guards, along with tighter tolerances for better fit and enhanced strength compared to traditional forged designs.
Is this lower receiver compatible with all AR-15 parts?
Yes, the OA-15C is designed for seamless integration with standard AR-15 uppers, barrels, and lower parts kits, making it versatile for any build configuration.
Does purchasing this product require an FFL transfer?
Absolutely, as the lower receiver is the serialized component of the firearm, it must be transferred through a licensed Federal Firearms Licensee (FFL) in compliance with federal regulations.


