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Zaffiri Precision® Integrated Blowhole System (IBS) Complete Slide Custom Combo – Fits GLOCK® 19 Gen 5 – Black Cerakote Cut for RMR – Chunk Ported Black Nitride Barrel – Blacked-Out Co-Witness Sights – Includes Pre-Installed Upper Parts Kit – CU-G19G5-IBS-RMR-BLK-CP-BN-BLNK
The Zaffiri Precision® Integrated Blowhole System (IBS) Complete Custom Slide and Barrel Conversion System for the GLOCK® 19 Gen 5 (CU-G19G5-IBS-RMR-BLK-CP-BN-BLNK) represents a masterfully engineered, match-grade tactical overhauling kit built to maximize sidearm tracking velocity, absolute mechanical precision, and recoil mitigation. While traditional external handgun compensators offer excellent flat-shooting metrics, they inherently add length to the pistol frame—requiring specialized, oversized holsters and adding threaded barrels that run afoul of regional municipal tracking constraints. The Zaffiri Precision IBS platform completely upends that paradigm. This American-machined operational masterpiece (810220066959) blends their time-tested ZPS slide geometry with a specialized, expansion-chambered compensator system built directly into the slide and barrel lines. It arrives completely compiled as a drop-in match-grade upgrade, providing an exceptional primary companion for defensive operators, red-dot competition shooters, and premium builders alike.
The structural foundation of this high-speed custom upper is anchored by the precision-cut **IBS Slide, CNC-machined from a monolithic block of 17-4 PH stainless steel**. Engineered with a clean, single window on each side forward of the ejection port and a large expansion exhaust window cut on the top-strap, this slide drops reciprocating mass significantly while providing a clean exit path for high-pressure gases. Sealed in a deeply bonded, tactical Armor Black Cerakote ceramic finish, the exterior is explicitly surface-machined with a **Trijicon RMR/SRO footprint optic cut** (cross-compatible with Holosun 407c/507c/508t optics) alongside a matching hard anodized cover plate. Sitting perfectly inside the slide dovetails is a pre-installed set of premium **Blacked-Out Co-Witness Height Iron Sights**, providing an absolute, uncluttered lower-third optical backup reference window straight through your red dot's glass.
The true functional heart of this premium conversion system is its matching **IBS Chunk Ported Match Barrel chambered in 9x19mm Parabellum**. CNC-milled from 416R weapons-grade stainless steel, this specialized barrel features a massive, engineered top port (the "Chunk Port") that aligns flawlessly with the slide's upper exhaust window. By redirecting unruly expansion blast vertically up and out of the gun, it generates continuous downward pressure to dramatically flatten vertical muzzle flip and accelerate your target recovery tracking lines. Treated with a sleek, friction-free Black Nitride finish for supreme surface hardness, the non-threaded configuration provides the exact flat-shooting advantages of a compensated setup while remaining entirely legal in restrictive states. Arriving with a **premium Zaffiri Precision internal Upper Parts Kit (UPK)** completely pre-installed—including the firing pin assembly, safety plunger, extractor, and a heavy-duty channel liner—this drop-in ready package eliminates the need for frustrating bench tool assemblies.
Includes: (1) Zaffiri Precision IBS Stainless Steel Custom Slide (Armor Black Cerakote / Gen 5 G19 Geometry / RMR Optic Cut), (1) Zaffiri Precision 416R Stainless Steel IBS #2 Chunk Ported Match Barrel (Black Nitride / Non-Threaded), (1) Set of Blacked-Out Suppressor/Co-Witness Height Iron Sights (Pre-Installed), (1) Complete Premium Zaffiri Precision Internal Slide Parts Kit (Pre-Installed), and Original Factory Sealed Presentation Packaging.
*Drop-In Frame Fitment & Recoil Spring Calibration Note: This premium custom slide kit is meticulously configured exclusively for Generation 5 GLOCK 19 frames (and cross-compatible Gen 5 G45 or G19X frames). To finalize your installation string, simply swap over your original factory Gen 5 dual recoil spring assembly or an equivalent aftermarket guide rod into the slide framework, slide the complete upper unit directly onto your lower frame rails, and perform a standard safety function test cycle prior to firing live ammunition.*
Key Features
- Integrated Blowhole System (IBS): Delivers the flat-shooting benefits of a heavy muzzle compensator within standard factory slide dimensions, eliminating the need for a bulky threaded attachment.
- Aerospace 17-4 Stainless Steel Slide: Monolithic billet metal body is held to ultra-tight tracking tolerances, maximizing structural rigidity and shot-to-shot mechanical accuracy curves.
- IBS #2 Match Chunk Ported Barrel: Specialized 416R stainless steel barrel features a large, back-bored top exhaust port engineered to vector expanding gasses upwards to aggressively tame muzzle flip.
- Trijicon RMR Optic Cut & Cover Plate: Micro-machined optic pocket enables direct, ultra-low flush mounting for the industry’s most trusted red dot sights without requiring clumsy adapter plates.
- Blacked-Out Lower-Third Co-Witness Sights: Elevated suppressor-height iron sights offer a clean backup orientation without cluttering your digital dot reticle window.
- 100% Pre-Assembled Upper Parts Kit: Arrives completely built out out-of-the-box with all internal strikers, safety plungers, and extractors pre-fit by Zaffiri gunsmiths to streamline your workspace.
Product Specifications
- Brand: Zaffiri Precision® (Largo, FL - Made in the USA)
- Product Line: Integrated Blowhole System (IBS) Complete Upper Series
- Model Name: IBS Slide and Chunk Ported Barrel Combo - GLOCK 19 Gen 5
- SKU / MPN: CU-G19G5-IBS-RMR-BLK-CP-BN-BLNK (Alternative Product Identifiers: G19G5-IBS-CPBO-BLK-BLK)
- Firearm Frame Compatibility Class: GLOCK® 19 Gen 5 / GLOCK® 45 / GLOCK® 19X (Fits Factory & Compatible Gen 5 Lowers)
- Caliber Class Chambering: 9x19mm Parabellum / 9mm Luger
- Slide Material Matrix: 17-4 PH Stainless Steel (CNC Machined to Match Tolerances)
- Slide Coating Finish: Armor Black Cerakote® H-Series Ceramic Hardcoat
- Slide Optic Cut Footprint: Trijicon® RMR / SRO & Holosun® 407c / 507c / 508t Compliant
- Barrel Material Matrix: 416R Weapons-Grade Certified Stainless Steel
- Barrel Porting Matrix: Custom IBS #2 Dedicated Chunk Top Porting
- Barrel Surface Finish: Low-Friction QPQ Black Nitride Corrosion Armor
- Muzzle Profile Class: Non-Threaded Flush Fit / Target Crown Line
- Iron Sights Profile: Suppressor / Co-Witness Height - Solid Matte Blacked-Out
- Internal Slide Components: Pre-Installed Zaffiri Precision UPK Hardware (No Recoil Spring Included)
- Total System Pack Dimensions: 10.25 x 2.00 x 2.00 Inches
- Total Complete Slide Assembly Weight: ~9.30 oz (Slide Only) / 21.0 oz Total Pack Mass
- UPC Barcode: 810220066959
