Bad Xiphos 9mm Stripped Upper Receiver - Precision Machined, Durable Finish

The Battle Arms Development Bad Xiphos 9mm stripped upper receiver delivers the lightweight, rigid foundation you need for a custom pistol caliber carbine build. Machined from solid 7075-T6 aircraft-grade billet aluminum, this upper is engineered to pair seamlessly with the Bad Xiphos lower—but it'll also mate with any MIL-SPEC style 9mm lower receiver, giving you flexibility in how you configure your PCC. Whether you're assembling a dedicated 9mm upper or swapping uppers on an existing platform, the precision engineering here means tight tolerances and reliable function downrange.

The design philosophy behind the Xiphos is straightforward: remove material where it doesn't contribute to strength, keep what matters. Lightweight cuts throughout the receiver reduce overall gun weight without sacrificing the structural integrity you depend on in a rifle. Hand-de-burred edges mean no sharp corners catching on gear or your hands during assembly and use. Every upper ships inspection-ready, dimensionally accurate, and finished in Type III hard coat anodized black—a durable coating that stands up to the rigors of training and hunting use.

At 6.10 ounces, this is a featherweight upper that won't bog down your PCC build. Whether you're running subsonic 9mm for suppressed shooting, pushing velocity for open-range accuracy, or just want a handy, maneuverable platform for home defense or tactical drills, the Bad Xiphos strips away excess weight while keeping you rock-solid. This is the kind of engineering detail that separates a quality billet upper from the rest—precision machining meets practical field design.

Key Features

• Billet 7075-T6 aircraft-grade aluminum for strength-to-weight ratio
• Compatible with Bad Xiphos lowers and any MIL-SPEC style 9mm lower receiver
• Lightweight cuts strategically positioned to reduce weight while maintaining rigidity
• Type III hard coat anodized black finish for durability
• Hand-de-burred edges for safety and finish quality
• Inspection-checked for dimensional accuracy before shipment

Specifications

Frequently Asked Questions

Will the Bad Xiphos upper work with my existing 9mm lower receiver?

Yes. While it's engineered as a matched set with the Bad Xiphos lower, this upper is compatible with any MIL-SPEC style 9mm lower receiver, so you can integrate it into an existing build or swap it between platforms.

What makes the billet aluminum construction worth the cost?

Billet 7075-T6 is aircraft-grade aluminum selected for high strength-to-weight ratio. Machining from a solid block allows for precision tolerances and strategic lightweighting cuts that maintain structural integrity while keeping the receiver lightweight. This translates to tighter tolerances and more reliable function than standard forgings.

Is this a complete upper receiver or does it need additional parts?

This is a stripped upper receiver—the aluminum body only. You'll need to source and install your own bolt carrier group, charging handle, barrel, gas system, and handguard to complete a functional upper assembly.

What's the advantage of the lightweight design for a pistol caliber carbine?

A lighter upper reduces overall rifle weight and improves handling, especially when running subsonic ammunition or using the platform for close-quarters or tactical training. Less mass in the receiver also means less reciprocating weight, which can improve reliability and reduce felt recoil in 9mm builds.