The AERO AR9 Complete Lower 9/40 BLK provides a dependable foundation for a 9mm or .40 S&W AR-style build. Manufactured by Aero Precision, this fully assembled lower pairs durable construction with essential controls, helping simplify your project while delivering the clean, professional look and reliable function expected from a quality platform component.
Designed to accommodate 9mm and .40 S&W configurations, this lower offers flexibility for compatible AR-9 and AR-40 builds. Its assembled setup includes key components such as the trigger, bolt catch, magazine release, and buffer tube, so you can spend less time sourcing individual parts. Check your upper, magazines, and other components for platform compatibility before purchase.
- Fully assembled Aero AR9 lower receiver for compatible 9mm and .40 S&W builds.
- Designed as a foundation for AR-9 or AR-40 rifle and pistol configurations.
- Includes trigger, bolt catch, magazine release, and buffer tube components.
- MIL-SPEC construction supports compatibility with a range of suitable AR components.
- Black hard-coat anodized finish adds a sleek appearance and helps resist corrosion and wear.
- Built for durable, dependable service at the range or in recreational applications.
Choose the AERO AR9 Complete Lower 9/40 BLK for a streamlined starting point backed by Aero Precision quality. Its versatile caliber compatibility, assembled controls, and resilient finish make it a practical choice for a thoughtfully planned build. Confirm component fitment and follow all applicable laws and safe firearm-handling practices.
