Polymer80 LR-308 80% Lower Receiver | Build Your Custom AR-10 | Polymer80

About this product

Build Your Custom AR-10 with the Polymer80 LR-308 80% Lower Receiver

Construct a high-performance .308 rifle with this easy-to-finish 80% lower receiver from Polymer80. Made from durable nylon-reinforced polymer, this lightweight yet tough receiver blank simplifies the drilling and cutting process, making it ideal for both beginners and experienced builders. Perfect for creating a custom AR-10 or LR-308 platform firearm.

Key Features and Benefits

• Lightweight Polymer Construction: Nylon-reinforced for enhanced strength and ease of machining, reducing build time and effort.
• Wide Caliber Compatibility: Designed for .308 Winchester and 6.5 Creedmoor, offering versatility for various shooting applications.
• Mil-Spec Fitment: Ensures seamless compatibility with standard AR-10 parts and accessories.
• Integrated Trigger Guard and Broached Magazine Well: Pre-machined features that simplify the build process and ensure reliable function.
• Made in the USA: Backed by Polymer80‘s reputation for quality and innovation in firearm components.

Technical Specifications

• Material: Nylon-reinforced polymer
• Color: Gray
• Compatibility: .308 Winchester, 6.5 Creedmoor
• Fitment: 100% Mil-Spec
• Engraving: No fire/safe markings (allows for custom engraving)
• Weight: Lightweight design for reduced overall rifle weight
• Origin: 100% made in the USA

How to Complete Your Build

After finishing this 80% lower, pair it with a .308 rifle upper and a .308 lower build kit for a complete custom rifle. For a hassle-free option, consider an AR-10/LR-308 build kit. This receiver is engineered to provide the same reliability and performance as metal counterparts, with the added benefit of easier fabrication.

Expert Tips and Resources

As a trusted name in the industry, Polymer80 offers extensive support. Follow our step-by-step guides for assembly and explore our FAQs on 80% lowers to ensure a successful build. This product is perfect for DIY enthusiasts looking to create a personalized firearm while adhering to all applicable laws.

Note: This is an 80% lower receiver and requires machining to become a functional firearm. Always comply with local, state, and federal regulations.