Andro Corp Industries ACI-15 Partial M4 7075 Aluminum Black Anodized Lower Receiver

The Andro Corp Industries ACI-15 Partial M4 Lower Receiver is a serialized foundation for your next AR-15 build, precision-machined from 7075 forged aluminum and finished in a durable black anodized coating. Designed in the M4 pattern, this partial lower comes pre-assembled with key mil-spec components, giving you the core starting point for a custom rifle while leaving room to add your preferred stock, grip, and upper receiver.

Manufactured in the USA, the ACI-15 lower is serialized as multi-caliber, accepting AR-15 pattern upper receivers and giving the builder flexibility across multiple chamberings. The forged aluminum body and black anodized finish provide long-term corrosion resistance for a build intended to last.

This partial lower receiver ships with the serialized lower assembly and pre-installed mil-spec internals. The upper receiver, barrel, handguard, stock, grip, and any detachable magazine are sold separately, allowing the builder to configure the AR-15 to their own specifications.

DISCLAIMER: Firearms and receivers are subject to state-specific shipping restrictions and must be transferred through a valid FFL dealer. Please visit our shipping restrictions page to review all applicable restrictions for your state. Subject to change.