Obsidian Arms 9C Pistol Caliber Billet Upper Receiver Black

Elevate your pistol caliber carbine build with the Obsidian Arms 9C Billet Upper Receiver in sleek black finish. Engineered for enthusiasts seeking superior performance in AR-9 platforms, this premium component combines lightweight design with robust construction to deliver reliable operation in blowback systems. Whether you're assembling a 9mm defensive pistol or a .22LR plinker, the 9C upper ensures seamless compatibility and enhanced accuracy without the bulk of traditional uppers. Key Features Premium 7075-T6 Aluminum Construction: Machined from high-strength billet aluminum for exceptional durability and a unique, custom aesthetic that stands out in any build. Optimized for Pistol Calibers: Short ejection port tailored for 9mm, .45 ACP, and .22LR calibers, promoting smooth ejection and reducing malfunctions in blowback operations. Removable Shell Deflector: Easily detachable for customized configurations, allowing you to adapt to your specific shooting needs. No Gas Tube Port: Designed exclusively for blowback systems, eliminating unnecessary components and simplifying your AR pistol caliber setup. Black Hard Coat Anodized Finish: MIL-A-8625 Type III Class 2 coating provides corrosion resistance and a professional, matte black appearance that resists wear. Made in the USA: Crafted with precision by Obsidian Arms, ensuring quality standards that meet the demands of tactical shooters and competitive marksmen. Technical Specifications Material: 7075-T6 Billet Aluminum Weight: 9.3 oz - Ultra-lightweight to minimize fatigue during extended range sessions. Compatibility: Fits any mil-spec AR-15 lower receiver and AR-15 compatible barrels for versatile builds. Additional Design Elements: No forward assist or ejection port cover for a streamlined profile; blowback operation only. Why Choose the Obsidian Arms 9C Upper Receiver? In the world of pistol caliber AR builds, compatibility and reliability are paramount. The 9C addresses common pain points like mismatched ejection patterns and excess weight by offering a dedicated design that integrates flawlessly with your existing AR components. Its lightweight construction reduces overall firearm weight, improving handling and maneuverability - ideal for home defense or dynamic shooting scenarios. Unlike standard uppers, this billet receiver provides a stronger, more rigid platform that enhances accuracy and longevity, giving you confidence in every round fired. Perfect for builders tired of generic parts that underperform in PCC applications, the 9C delivers the precision and customization options you need to create a superior 9mm AR pistol or carbine. Ready to upgrade your build? Add the Obsidian Arms 9C Billet Upper Receiver to your cart today and experience the difference in quality craftsmanship and performance. Frequently Asked Questions Q: What calibers is the 9C Upper Receiver compatible with? A: It is optimized for pistol and rimfire calibers including 9mm, .45 ACP, and .22LR, ensuring reliable performance in blowback-operated systems. Q: Does it include last round bolt hold open (LRBHO) functionality? A: The 9C does not have built-in LRBHO, but it is compatible with aftermarket bolt carriers and magazine followers that provide this feature. Q: Will this upper work with my standard AR-15 lower? A: Yes, it is fully compatible with any mil-spec AR-15 lower receiver, making it easy to incorporate into your existing platform.