Upgrade your AR-15 build with the Obsidian Arms 15C2 Lightweight Billet Lower Receiver in durable black finish. Engineered from high-strength 7075-T6 aluminum, this precision-machined component delivers exceptional weight savings without sacrificing reliability, making it the ideal choice for competitive shooters, hunters, and tactical enthusiasts seeking enhanced maneuverability and performance.
Key Features
- Ultra-Lightweight Construction: Weighing only 8.5 ounces, it reduces overall rifle weight to improve handling, balance, and reduced shooter fatigue during extended sessions.
- Oversized Trigger Guard: Designed for gloved operation, ensuring quick and reliable trigger access in all weather conditions and environments.
- Flared Magazine Well: Facilitates faster, smoother magazine insertions, boosting reload efficiency in high-pressure scenarios.
- Precision Billet Machining: Allows for custom aesthetics and tight tolerances that enhance fitment with standard AR-15 components.
- Hard Coat Anodized Finish: Provides superior corrosion resistance and longevity, maintaining a sleek black appearance under rigorous use.
Specifications
- Material: 7075-T6 Aluminum Alloy
- Weight: 8.5 oz
- Finish: Black Hard Coat Anodized (MIL-A-8625 Type III Class 2)
- Compatibility: Standard AR-15 lowers, uppers, barrels, and accessories
- Manufacturing: Made in the USA for quality assurance
Why Choose the Obsidian Arms 15C2?
For AR-15 builders tired of heavy, cumbersome receivers that hinder mobility, the 15C2 offers a game-changing solution. Its lightweight design addresses the need for agility in dynamic shooting sports or field applications, while robust construction ensures it withstands the demands of repeated use. Precision features like the flared mag well solve common reload frustrations, delivering a smoother, more intuitive shooting experience. Invest in this billet lower to create a custom rifle that’s not just functional, but optimized for your style of shooting.
Frequently Asked Questions
Q: Is the Obsidian Arms 15C2 compatible with mil-spec AR-15 parts?
A: Yes, this lower receiver is fully compatible with standard mil-spec AR-15 components, including uppers, triggers, stocks, and barrels, for seamless integration into your build.
Q: How does the weight savings benefit my AR-15 setup?
A: The 8.5 oz weight allows for a lighter overall rifle, improving portability, quicker target acquisition, and less strain during long-range days or competitions.
Q: What sets billet lowers apart from forged ones?
A: Billet lowers like the 15C2 are CNC-machined from a solid block, enabling enhanced ergonomics and custom detailing while maintaining the strength of 7075-T6 aluminum.
Elevate your AR-15 with the precision and lightness of the Obsidian Arms 15C2 Lightweight Billet Lower Receiver. Perfect your build and unlock superior performance on the range or in the field.


