NDZ Performance is a trusted manufacturer of high-quality aftermarket accessories, made in the USA. They offer a full in-house custom design shop capable of creating CNC, Fiber, or CO2 laser engraved products, handling orders from one item to large quantities. Their extensive selection includes accessories for popular firearm brands like Glock, SIG, S&W, Ruger, Kimber, H&K, Mossberg, and Remington. The company provides custom milling, slide cuts, optic cuts for Trijicon RMR and Holosun, and precision Swiss screw machine turning for high-volume automotive and aerospace parts. Customers praise their outstanding customer service, noting prompt responses, even outside business hours, and respectful, friendly staff. The products are described as flawless, fitting perfectly, and delivered quickly, often with updates throughout the process. Many customers have successfully used NDZ parts for firearm builds, resulting in smooth, reliable operation. Overall, NDZ Performance is recommended for their quality products, excellent service, and ability to fulfill custom requests efficiently.