Polymer80 RL556V3 – Rhino 80% AR15 Lower Receiver and PF940C 80% Pistol Frame (Black Only)

For builders who demand modularity and control over their firearm projects, the Polymer80 RL556V3 – Rhino 80% AR15 Lower Receiver and PF940C 80% Pistol Frame (Black Only) delivers a complete foundation for two distinct platforms. This combo package provides the un-machined RL556V3 lower receiver for AR15 builds and the PF940C frame for compact 9mm pistols, both in durable black polymer. Each component requires final milling and finishing, giving you full legal compliance with ATF guidelines while allowing personalized customization. The RL556V3 features the Rhino platform with integrated rear takedown pin and trigger guard, while the PF940C is compatible with Glock 19 Gen3 slides and internals.

Overview

The polymer80 rl556v3 – rhino 80% ar15 lower receiver and pf940c 80% pistol frame (black only) is a dual-platform kit designed for serious builders. The RL556V3 uses a reinforced polymer construction with steel trigger pin inserts and a flared magazine well for faster reloads. The PF940C frame incorporates a standard rail system for compact pistols and is optimized for Glock 19 Gen3 parts. Both components arrive as 80% blanks, meaning you must complete the milling process to create functional receivers. This package saves time and shipping costs by bundling two essential frames for AR and pistol builds.

Features & Specs

• RL556V3 Rhino Lower: 80% AR15 lower receiver with integrated trigger guard, steel locking block, and reinforced buffer tower. Compatible with standard AR15 upper receivers and LPK parts. Requires drilling of fire control group holes and trigger pin channels.
• PF940C Pistol Frame: 80% compact polymer frame compatible with Glock 19 Gen3 slides, barrels, and internals. Features a textured grip, integrated trigger housing pin, and standard rail system for accessories.
• Material & Finish: High-impact black polymer with textured grip surfaces on both frames. RL556V3 includes four steel insert pins for enhanced durability at stress points. PF940C frame uses a reinforced polymer blend with glass-fiber content.

Who It’s For

The polymer80 rl556v3 – rhino 80% ar15 lower receiver and pf940c 80% pistol frame (black only) is intended for experienced firearm builders who have access to a drill press, router, or CNC setup. This kit suits DIY enthusiasts who want to complete both an AR15 and a compact pistol frame simultaneously. It is not recommended for first-time builders due to the precision required for both receivers. If you already own a Glock 19 Gen3 slide assembly and an AR15 upper, this combo provides the lower components needed to finish two builds from a single purchase. The black-only finish ensures a consistent look across both platforms.

Shipping & FFL

Because the Polymer80 RL556V3 and PF940C are both 80% receivers (not serialized firearms), they can be shipped directly to your residential address without an FFL transfer. No background check is required for purchase. However, you must comply with all federal, state, and local laws regarding the completion and possession of homemade firearms. Check your jurisdiction for any restrictions on 80% receivers before ordering. By purchasing this product, you acknowledge that you are legally eligible to own firearms and that you will complete the milling process in compliance with ATF regulations. This product is sold as a raw component only; no firearms are included.