Odin Billet Lower Receiver

The Odin Works Odin Billet Lower Receiver is a precision-machined, semi-automatic rifle lower receiver chambered in .223 Remington/5.56 NATO. Built from solid billet aluminum and finished in a hard-anodized black coating, this lower receiver serves as the serialized foundation for custom AR-pattern rifle builds. It is compatible with standard mil-spec components and provides shooters with a robust platform for everything from precision rifle competition to tactical training and defensive rifle configuration.

Billet construction offers superior surface finish consistency and dimensional accuracy compared to forged alternatives, which translates to tighter tolerances and reliable engagement with upper receivers. The hard-anodized finish provides corrosion resistance during extended field use and range sessions, protecting against salt spray exposure and moisture ingress. At 1 pound, this lower receiver contributes minimally to overall rifle weight, allowing builders to allocate mass budget to barrels, optics, or other critical systems. The compact 6.5 x 2.5 x 10-inch profile fits standard vertical storage and transport configurations common in patrol vehicles and operator bags.

This receiver is designed for shooters building modular .223/5.56 platforms who require verified part quality and compatibility with commercial and mil-spec components. Law enforcement armorer programs, military support contractors, and civilian precision shooters frequently specify billet lowers when reliability and repeatability are non-negotiable. Custom builders value the construction quality and consistent part-to-part fit that billet manufacturing provides, particularly when integrating multiple aftermarket component brands into a single coherent system.

As a serialized firearm component, the Odin Billet Lower Receiver is subject to federal firearms regulations. Purchasers must comply with all applicable state and local laws regarding receiver acquisition, transfer, and possession. Federal Firearms Licensee (FFL) transfer and background check requirements apply in most jurisdictions.