Product Description The Zaffiri Precision Integrated Blowhole System (IBS) Complete Upper is a premium aftermarket slide engineered specifically for the Glock 19 Gen 3. This innovative design seamlessly blends the proven ZPS.1 slide profile with a factory-integrated Blowhole Compensator, delivering flat-shooting performance and superior gas management without the need for a threaded barrel. Machined from single-billet 17-4 stainless steel with tight tolerances, this complete upper delivers enhanced accuracy and long-term reliability. Finished in a bold Flat Dark Earth Cerakote with Black Nitride accents, the slide arrives pre-cut for an RMR optic footprint, ready to accept a wide range of compatible red dot sights right out of the box. Proudly designed and manufactured at the Zaffiri Precision facility in Florida, USA, this slide is among the finest aftermarket upgrades available for the Glock 19 platform. Product Highlights Integrated Blowhole Compensator: Factory-blended compensator manages muzzle gas and reduces felt recoil for flatter, faster follow-up shots without requiring a threaded barrel. Single-Billet 17-4 Stainless Steel: Precision-machined from high-grade stainless steel with tight tolerances, delivering improved accuracy and exceptional long-term durability. RMR Optic Cut: Pre-machined to accept all optics with an RMR footprint, enabling a seamless and secure red dot sight installation. Flat Dark Earth Cerakote Finish with Black Nitride: Durable FDE coating combined with a Black Nitride barrel finish provides corrosion resistance, a tactical aesthetic, and lasting performance under demanding conditions. American Made: Designed and manufactured in Florida, USA, ensuring strict quality control and craftsmanship at every stage of production. Specs Brand: Zaffiri Precision Model: Complete Upper Series: Integrated Blowhole System (IBS) Firearm Fit: Glock 19 Gen 3 Slide Description: RMR Cuts Color: Flat Dark Earth (FDE) Material: 17-4 Stainless Steel Barrel Finish: Black Nitride Manufacturer Part Number (MPN): CUG19G3IBSRMRFDECPBNBL UPC: 810220066621 Country of Manufacture: USA Disclaimer: We strive to provide accurate and up-to-date product descriptions, specifications, and images; however, errors or omissions may occasionally occur. We are not responsible for any inaccuracies or discrepancies in the content provided. If you notice anything incorrect or unclear, please contact us so we can correct it. When in doubt, we recommend verifying details directly with the product&';s manufacturer.