The Polymer80 80% Lower Receiver and Jig Kit (LR-308) comes complete with essential parts as described: Polymer80 80% Lower Receiver and Jig Kit (LR-308) Overview The Polymer80 80% Lower Receiver and Jig Kit (LR-308) provides a precision-machined platform for builders seeking to complete a large-frame .308 caliber firearm. This kit includes the 80% lower receiver constructed from reinforced polymer, paired with a dedicated jig system designed to guide the user through the necessary machining steps. As an unfinished component, this receiver requires final material removal to accept standard LR-308 parts. Builders should verify compatibility with their chosen upper receiver and internal components before beginning assembly. The kit represents a focused solution for those wanting to complete a lower receiver without serialization requirements, provided all applicable laws are observed. Features and Specs This Polymer80 80% Lower Receiver and Jig Kit (LR-308) is built around a glass-reinforced polymer frame that offers structural integrity while reducing overall mass. The jig includes hardened steel drill bushings precisely located for the trigger pocket, hammer pin, and safety selector holes. The kit includes the jig body, drill bits, end mill, and necessary hardware for fixture mounting. The lower receiver is compatible with DPMS-pattern LR-308 components. The polymer material resists impact and environmental factors common in field use. The jig system indexes off the receiver’s external geometry to maintain alignment during machining. Reinforced polymer 80% lower receiver for LR-308 pattern builds Includes full jig system with hardened steel bushings and alignment pins Compatible with DPMS-spec LPK, trigger groups, and buffer tubes Who It Is For This kit is intended for experienced builders with access to a drill press or hand drill capable of precise depth control. The Polymer80 80% Lower Receiver and Jig Kit (LR-308) suits individuals who prefer to complete a lower receiver from an unfinished state using manual machining methods. It is not recommended for first-time builders unfamiliar with 80% receiver completion procedures. Users should have a clear understanding of fire control group geometry and safe drilling practices. This product is designed for personal fabrication and is not intended for resale as a completed firearm. Builders are responsible for ensuring compliance with all federal, state, and local regulations regarding receiver manufacture. Experienced DIY firearm builders with machining skills Those building a .308 caliber rifle from individual components Users seeking an unfinished lower without FFL transfer requirements Shipping and FFL This Polymer80 80% Lower Receiver and Jig Kit (LR-308) is classified as an unfinished receiver and does not require shipment to a Federal Firearms License (FFL) dealer. It may be shipped directly to your residential or business address where local law permits. Some states and municipalities impose restrictions on the possession or transfer of 80% receivers. It is the buyer’s sole responsibility to verify that this product is legal to own and receive in their jurisdiction. We recommend consulting with local law enforcement or a firearms attorney if you are uncertain about applicable laws. This item is not a firearm and is sold with no warranty of compliance with local statutes. By purchasing, you affirm that you are legally eligible to own this product and that you will not transfer it to any person prohibited from possessing firearms. Shipped directly to your address; no FFL transfer required Buyer must verify local legality before ordering Not for sale in jurisdictions prohibiting 80% receivers

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

While Polymer80 80% Lower Receiver and Jig Kit (LR-308) 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.