Polymer80 LR-308 80% Lower Receiver

The Polymer80 LR-308 80% Lower Receiver comes complete with essential parts as described: Build your custom AR-10 with an easy-to-finish polymer 80% lower. This .308-compatible 80% lower is constructed from lightweight but tough nylon-reinforced polymer. This receiver blank's polymer construction makes drilling and cutting a little quicker and easier -- making this unit perfect for first-time 80% builders! Assembling Your .308 80% Lower Once fabricated, this lightweight lower receiver will provide the same parts compatibility and functionality as any other AR-15 lower receiver. Pair with a barreled .308 rifle upper and a .308 lower build kit. Or just grab an AR-10/LR-308 build kit to finish your custom rifle! Polymer .308 80% Lower Specifications Compatibility: .308 Winchester, 6.5 Creedmoor Construction: Nylon-reinforced polymer Color Options: Gray Fitment: 100% Mil-Spec Fire/Safe Engraving: No Features: Broached magazine well, integrated trigger guard 100% Made in The USA Need Help Building? Read Our Guides Follow our step-by-step picture guide to install your lower parts kit and buffer. Not sure which parts to pick? Read our Ultimate Guide on How to Build an AR-15. New to building custom guns? Read our FAQ: What Is An 80% Lower?  

No. This product is a part or accessory and does not require an FFL for purchase or shipping.

While Polymer80 LR-308 80% Lower Receiver is legal in most states, always verify your local laws before placing an order. We comply with all state regulations.

In most cases, yes — Glock-compatible frames are designed to accept Glock OEM and compatible magazines. Always confirm fitment in the product details.

That depends on your state’s concealed carry laws. Once properly serialized and registered, carrying may be allowed under state law.

We ship all over the USA within 1–3 business days. You will receive tracking once shipped. Delivery times vary by carrier and region.