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Obsidian Arms 15C2 Lightweight Billet Lower Receiver Black

Obsidian Arms 15C2 Lightweight Billet Lower Receiver Black

Obsidian Arms · Lower Receiver

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Best price

$260.00at AR15Discounts

checked Oct 31, 2026

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Where to buy

StorePriceAvailabilityBuyAdd to build
AR15Discounts Best price $260.00checked Oct 31, 2026 Check store Buy at AR15Discounts
Dirty Bird $260.00checked Oct 31, 2026 Check store Buy at Dirty Bird

Prices and availability change often, so confirm on the store's site before you buy. We may earn a commission from these links.

Price history

Dashed line = out of stock. Tracking since Oct 28, 2026.

Show the prices as a table
StoreLatestLowestHighest
AR15Discounts$260.00$260.00$260.00
Dirty Bird$260.00$260.00$260.00

Since Oct 28, 2026.

About this part

The Obsidian Arms 15C2 Lightweight Billet Lower Receiver Black is an AR-15 lower receiver from Obsidian Arms. It's sold by 2 stores, all at $260.00.

Specifications

Manufacturer
Obsidian Arms
Color
Black
Platform
AR-15

From the manufacturer

Elevate your AR-15 build with the Obsidian Arms 15C2 Lightweight Billet Lower Receiver in Black, a precision-engineered component designed for enthusiasts seeking superior performance without added bulk. Crafted from high-strength 7075-T6 aluminum, this billet lower delivers exceptional durability and a sleek, modern aesthetic that stands out in any custom rifle configuration. Key Features Lightweight Design: Weighing just 8.5 ounces, it reduces overall rifle weight for enhanced maneuverability during extended range sessions or tactical operations. Oversized Trigger Guard: Accommodates gloved hands for reliable operation in all conditions, ensuring quick and secure access to controls. Flared Mag Well: Facilitates faster magazine changes, improving reload efficiency in high-pressure scenarios. Precision Machining: Billet construction allows for tight tolerances and compatibility with standard AR-15 mil-spec parts, guaranteeing a seamless fit. Black Hard Coat Anodized Finish: Provides corrosion resistance and a professional, low-glare appearance for discreet use. Specifications Material: 7075-T6 Aluminum Alloy Weight: 8.5 oz Finish: Black Anodized (MIL-A-8625 Type III) Compatibility: Standard AR-15 upper receivers, barrels, and components Design: Stripped lower receiver for custom builds Why Choose the Obsidian Arms 15C2? Unlike traditional forged lowers, the billet design of the 15C2 offers unique ergonomic enhancements that address common builder pain points like cumbersome controls and excess weight. This lower solves these issues by providing a streamlined platform that boosts accuracy and handling, making it ideal for competitive shooters or those building lightweight tactical rifles. Its robust construction ensures long-term reliability, even under rigorous use, while the flared mag well and oversized guard enhance usability without compromising on strength. Invest in the Obsidian Arms 15C2 Lightweight Billet Lower Receiver today and transform your AR-15 into a high-performance powerhouse that meets the demands of precision shooting and beyond. Frequently Asked Questions 1. Is a billet lower receiver stronger than a forged one? Billet lowers, like the 15C2, offer comparable strength to forged options when made from 7075-T6 aluminum. While forged receivers may have slight advantages in grain structure, billet designs excel in customization and fit, providing excellent durability for most applications. 2. Does this lower work with all standard AR-15 parts? Yes, the Obsidian Arms 15C2 is fully compatible with mil-spec AR-15 components, including uppers, triggers, stocks, and grips, allowing for effortless integration into your existing build or new project. 3. How much weight does this lightweight lower save compared to standard models? At 8.5 ounces, the 15C2 is noticeably lighter than many traditional lowers, which often weigh 9-10 ounces or more, contributing to a more agile rifle without sacrificing structural integrity.

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$260.00 at AR15Discounts
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