Polymer80 RL556V3 RHINO 80% AR-15 Lower Receiver – Unfinished Firearm Frame

Description

Polymer80 RL556V3 RHINO 80% AR-15 Lower Receiver

Take your firearms customization to the next level with the Polymer80 RL556V3 RHINO 80% AR-15 Lower Receiver. This unfinished firearm frame provides the foundation for building your own personalized AR-15 rifle while complying with federal regulations for homemade firearms. As an 80% lower receiver, this component requires final machining and finishing by the end user, making it the perfect project for experienced gunsmiths and firearms enthusiasts who want complete control over their build.

Why Choose the Polymer80 RL556V3 RHINO?

The RL556V3 RHINO represents Polymer80’s commitment to quality and innovation in the firearms industry. Unlike traditional aluminum receivers, this polymer-based lower offers significant weight reduction without sacrificing durability. The reinforced polymer construction withstands the rigors of regular use while maintaining dimensional stability. Whether you’re building a lightweight hunting rifle, a competition firearm, or a personal defense weapon, this lower receiver provides a reliable starting point for your project.

Key Features and Benefits

• 80% Complete Design: Requires final machining to become a functional firearm receiver, allowing for legal home manufacturing
• Reinforced Polymer Construction: High-strength polymer material provides durability while reducing overall weight
• AR-15 Platform Compatibility: Designed to work with standard AR-15 upper receivers and components
• Pre-Drilled Pin Holes: Includes pre-marked and partially drilled holes for easier completion
• Enhanced Grip Geometry: RHINO design features improved ergonomics for better handling
• Fire Control Group Pocket: Pre-formed cavity ready for trigger assembly installation after machining

Technical Specifications

The Polymer80 RL556V3 is engineered to meet the demanding requirements of AR-15 platform firearms. The receiver features standard magazine well dimensions, buffer tube threads, and fire control group spacing. The polymer material incorporates fiber reinforcement for added strength in critical stress areas. While lighter than aluminum counterparts, this lower maintains the necessary structural integrity for reliable firearm operation.

Building Your Firearm

Completing an 80% lower receiver requires specific tools and knowledge. You’ll need a drill press or milling machine, appropriate jigs, and firearm-specific drill bits and end mills. The process involves drilling the remaining fire control group holes, milling the fire control cavity to final dimensions, and installing the required components. Always follow local, state, and federal regulations regarding firearm manufacturing and consult with experienced gunsmiths if you’re unfamiliar with the process.

Legal Considerations

As an unfinished firearm receiver, the Polymer80 RL556V3 is not considered a firearm under federal law until completed. However, users must comply with all applicable laws regarding homemade firearms. Once machined to completion, the receiver becomes a firearm subject to all relevant regulations. It is the purchaser’s responsibility to understand and follow all local, state, and federal laws governing firearm manufacturing and ownership.

Why Buy From Connecticut Firearms Gunshop?

FAQ: Why Choose Our Store?

• Expert Guidance: Our knowledgeable staff provides expert advice on firearms, accessories, and legal requirements
• Quality Assurance: We carefully select products from reputable manufacturers like Polymer80 to ensure reliability
• Customer Support: Comprehensive after-sales support and technical assistance for your firearms projects
• Legal Compliance: We help ensure your purchases comply with Connecticut and federal firearm regulations
• Secure Shopping: Safe, discreet packaging and secure transaction processing for all orders

For all your firearms needs, visit our Connecticut Firearms Gunshop to explore our complete selection of firearms, accessories, and building components.

Ideal For

• Firearms enthusiasts building custom AR-15 rifles
• Gunsmithing projects and educational builds
• Creating lightweight hunting or competition firearms
• Experienced builders seeking polymer receiver options
• Firearms education and training programs

Note: This product is an unfinished firearm receiver and requires additional machining to become functional. Purchasers must be at least 21 years of age and comply with all applicable laws. Some states and localities restrict or prohibit 80% receivers – verify your local regulations before purchasing.