RL556V3 80% AR15 LOWER-GRAY

The RL556V3 80% AR15 Lower – Gray provides a lightweight and durable option for AR‑15 enthusiasts and collectors. Additionally, it features Polymer80’s advanced polymer composite for strength and long‑term reliability. Because of its solid core design, this lower offers stability while keeping the build light and balanced.

The RL556V3 includes a flared magwell for easier handling and a reinforced MIL‑SPEC buffer tube housing for added durability. Moreover, it uses Polymer80’s unique threadless pistol‑grip design, which is exclusive to their rifle lowers. These enhancements create a cleaner, smoother profile that stands out in display setups and educational collections.

This lower is compatible with AR‑15–style external components, making it ideal for hobbyists who enjoy building non‑functional display models or collecting firearm‑related parts. Furthermore, the included polymer jig and drill guide provide structure for safe handling and demonstration purposes.

Key Features

• Made from Polymer80’s proprietary polymer composite

• Lightweight design with a solid core for added strength

• Flared magwell for improved handling

• Reinforced MIL‑SPEC buffer tube housing

• Unique threadless pistol grip area, exclusive to Polymer80

• Designed for AR‑15–style platforms in display or hobby setups

• Compatible with external components used for mock builds

• Smooth gray finish for a clean, modern look

• Sold as a non‑functional 80% lower for lawful personal ownership

• Inspected for quality, strength, and consistency

Included

• 80% Polymer AR‑15 Lower Receiver (MIL‑SPEC)

• Polymer Jig

• Trigger‑hole demonstration guide

• Drill bits and end mill (included as packaged components)

RL556V3 80% AR15 LOWER – GRAY

The RL556V3 80% AR15 Lower – Gray is one of Polymer80’s most popular unfinished AR‑15 style receivers. Its lightweight polymer composite design, solid core layout, and flared magwell make it a favorite among hobbyists, collectors, and educational enthusiasts. The reinforced MIL‑SPEC buffer tube housing and threadless pistol grip area add both strength and visual appeal, making it ideal for display setups and non-functional demonstrations.

Why Enthusiasts Choose the RL556V3 Gray

• Durable Polymer Construction: Lightweight yet strong, perfect for long-term display.

• Unique Design Features: Flared magwell and threadless pistol grip area for a modern, clean look.

• Versatile Use: Compatible with AR‑15 external components for hobby or collection purposes.

• Color Options: The gray finish provides a sleek, neutral aesthetic that complements other AR‑15 parts.