Description
AUTHORITY ELITE AR-15 Ambidextrous Lightweight Billet Lower Receiver
Precision CNC billet 7075-T6 aluminum construction — ambidextrous controls, lightweight design, and built for full MIL-SPEC compatibility. Perfect for custom builds and high-performance AR-15 platforms.

- Precision CNC machined from aerospace-grade 7075-T6 aluminum
- Ambidextrous magazine release & ambidextrous bolt catch/safety provisions
- Lightweight, weight-optimized billet design — retains strength and rigidity
- Hard anodized finish: MIL-A-8625F Type III, Class 2 (Black)
- Compatible with standard Mil-Spec AR-15 lower parts kits and triggers
- Accepts standard AR-15 magazines and buffer assemblies
- Full dimensional inspection and QA before shipping
Product Overview
The AUTHORITY ELITE® AR-15 Ambidextrous Lightweight Billet Lower Receiver is engineered for builders who demand precise fit, superior materials, and modern ergonomics. CNC machined from 7075-T6 billet aluminum, this lower receiver combines reduced mass with the structural integrity required for reliable performance. Ambidextrous controls and an optimized trigger pocket make it an excellent choice for competition builds, duty rifles, or high-end custom projects.
Why Choose Authority Elite?
- Materials & Machining: Solid 7075-T6 billet for maximum strength; premium CNC tolerances ensure consistent fit with upper receivers and fire control components.
- Ambidextrous Functionality: Accepts ambidextrous magazines, bolt catch, and safety selector configurations to suit left- or right-handed operators.
- Finish & Durability: Type III hard anodize provides excellent wear resistance and corrosion protection for long service life.
- Drop-in Compatibility: Built to accept Mil-Spec parts and common aftermarket components for easy assembly and upgrade paths.
Specifications
- Model: AUTHORITY ELITE® AR-15 Billet Lower (Ambidextrous)
- Material: 7075-T6 Aircraft-Grade Aluminum (Billet)
- Finish: MIL-A-8625F Type III, Class 2 Hard Anodized (Black)
- Compatibility: Standard AR-15 / M4 pattern lowers — accepts Mil-Spec and most aftermarket kits
- Controls: Ambidextrous magazine release provisions; ambidextrous safety/bolt catch ready
- Trigger Pocket: Precision pocket for common aftermarket triggers
- Weight: Lightweight, optimized billet design (varies by configuration)
- Country of Origin: USA (replace if needed)
- SKU: AUTH-ELT-AR15-BLR-SKU (replace)
COMPATIBILITY & FITMENT
Designed to accept standard Mil-Spec AR-15 components (barrels, BCGs, buttstocks, grips). For AR pistol or SBR builds consult a qualified gunsmith and ensure compliance with NFA rules where applicable.

FEDERAL FIREARMS LICENSE REQUIRED
Please provide your FFL dealer information to sales@ravenrockarmory.com immediately after purchase. Orders without valid FFL documentation will be delayed or cancelled.
Fitment & Installation Notes
This lower is designed for AR-15 / M4 style rifles and is compatible with standard Mil-Spec lower parts kits. Some proprietary drop-in kits may require minor fitting. We recommend installation by a qualified gunsmith if you are not familiar with AR assembly procedures.
Important — Federal Firearms License Required
Note: A valid Federal Firearms License (FFL) transfer is required to purchase and receive this product where applicable. By ordering firearms receivers or other regulated components you agree to follow all local, state, and federal laws. We will only ship to a valid FFL dealer address unless local law permits otherwise.
Ordering & Shipping
- Availability: In stock / backorder (update as appropriate)
- Shipping: Ships to FFL — buyer must provide valid FFL info at checkout
- Returns: Return policy applies to non-serialized parts — contact us before returning
Additional Details
- SKU:
- AUTH-LR
- UPC:
- 810033785870
- Condition:
- New
- Width:
- 8.00 (in)
- Height:
- 6.00 (in)
- Depth:
- 8.00 (in)