Combat Armory Billet AR-9 Lower Receiver Stripped

Combat Armory Billet AR-9 Lower Receiver

This stripped lower receiver represents serious engineering for the AR-9 platform. Machined from 7075 T6 aluminum billet stock, it delivers the strength and precision you expect from a mil-spec component.

Key Features

• 7075 T6 Aluminum Construction: Premium billet material provides durability and reliability
• Glock Magazine Compatible: Works with standard Glock magazines for cost-effective ammunition feeding
• Flared Magazine Well: Speeds up magazine changes and reduces fumbling under pressure
• Magpul-Style Trigger Guard: Ergonomic design accommodates gloved operation
• Pre-Installed Components: Magazine catch and ejector come factory-installed, saving you assembly time
• Non-Last Round Bolt Hold Open: Allows manual bolt manipulation without relying on magazine-dependent hold-open

What You Get

This is a stripped lower receiver—the regulated firearm component. You'll need to add your own fire control group, safety selector, and stock assembly to complete your build. The pre-installed magazine catch and ejector mean less work during final assembly.

The Bottom Line

Combat Armory has built a reputation for precision machining and attention to detail. This lower receiver is trusted by military and law enforcement professionals, as well as serious civilian shooters who demand reliability and accuracy. It's a solid foundation for a capable AR-9 platform.