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Zaffiri Precision® IBS Integrated Blowhole System Full-Size Optic-Ready Complete Slide Assembly – Fits Glock® 17 Gen 3 & Polymer80® PF940v2 – Chunk Ported 9mm Match Barrel – Trijicon® RMR Footprint – Black Cerakote Finish – CU-G17G3-IBS-RMR-BLK-CP-BN-BLNK
Product Description
The Zaffiri Precision® IBS Integrated Blowhole System Full-Size Optic-Ready Complete Slide Assembly (CU-G17G3-IBS-RMR-BLK-CP-BN-BLNK) represents a premier mechanical milestone in striker-fired handgun customization, integrated muzzle expansion physics, and high-efficiency tactical weapon staging, proudly machined and finished natively by American craftsmen in Largo, Florida, USA. Explicitly engineered to drop onto factory Glock® 17 Gen 3 frames or custom Polymer80® PF940v2 workspace platforms, this pre-assembled complete upper deck eliminates the frustrating lag of standard OEM parts. While traditional aftermarket modifications force shooters to choose between a bulky external screw-on compensator—which alters holster fitment and introduces timing issues—or traditional slide porting that bleeds velocity, the Zaffiri IBS system completely bypasses those technical trade-offs. This flagship combat and competition hardware asset (810220066355) introduces a perfectly matched, expansion-chambered upper block engineered for maximum recoil control.
The foundational performance triumph of this premium upgrade relies on its Integrated Blowhole System (IBS) architecture, fusing a monolithic 17-4 stainless steel slide with a specialized "Chunk Ported" (CP) barrel design. Moving beyond basic decorative slide windows, the top strap of the IBS slide features a large, precision-milled port forward of the front sight. Anchored inside is a match-grade 416R weapon-grade stainless steel 9mm barrel treated with a low-friction Black Nitride base. This barrel features an integrated single-port expansion chamber ("Chunk Port") aligned perfectly with the slide window. As hyper-velocity combustion gases enter the chamber behind the projectile, they are forcefully vented upward in a clean vertical exhaust stream. This massive downward pressure vector counteracts linear recoil loops and dramatically flattens muzzle rise, keeping your sights tracking seamlessly through high-tempo strings.
The true operational triumph of this American-built modification engine centers on its **turn-key, zero-fail deployment readiness**. Shifting away from bare aftermarket slide projects that force armorers to wrestle with toxic tolerance stacking, backordered firing pins, or loose extractor assemblies, this package ships 100% complete with a **factory-installed internal Upper Parts Kit (UPK)**. The optics deck is pre-cut with a dedicated **Trijicon® RMR footprint**, locking down high-performance red dots like the Trijicon SRO or Holosun 407c/507c/508t directly to the slide body via secure, thread-timed steel mounting posts. Outfitted out-of-the-box with pre-installed, high-visibility **blacked-out co-witness height iron sights** that provide a clean, uncluttered lower-third visual alignment loop through your electronic reticle, this 16.5-ounce tactical engine yields absolute mechanical and geometric dominance over your sidearm's performance matrix.
Includes: (1) Authentic Zaffiri Precision IBS Complete Slide Assembly (Black Cerakote Finish, Machined 17-4 Stainless Steel), (1) Zaffiri 416R Stainless Steel Match-Grade 9mm Integrated Chunk Ported Barrel (Black Nitride Base), (1) Pre-Installed Premium Internal Slide Upper Parts Kit with Channel Liner & Guide Rod Assembly, and (2) Pre-Installed Blacked-Out Suppressor/Co-Witness Height Target Sight Components, Packed inside Original Branded Factory Sealed Protective Retail Presentation Storage Boxing.
*Administrative Armorer Staging, Optic Torque Limits & Chunk Port Gas Clearance Guidance: The Zaffiri Precision IBS Complete Slide is a high-tolerance drop-in performance part. **CRUCIAL PLATFORM GENERATION WARNING:** This complete upper is engineered exclusively for **Generation 3 Glock® 17 sub-models or matching 100% scaled aftermarket receiver blocks like the Polymer80 PF940v2; it is completely incompatible with Gen 4, Gen 5, or compact Glock 19 frame configurations**. **CHUNK PORT GAS DISCHARGE ALERT:** Because the single expansion-port barrel channels extreme-temperature combustion gases straight up to flatten recoil, **never place your support-hand fingers, weapon light wires, or tactical gear straps over or near the top slide exhaust port during firing loops, and ensure impact-rated eye protection is worn constantly to guard against airborne carbon soot**. When mounting your chosen red dot optic inside the RMR footprint, **strictly utilize the specialized optic screws provided by Zaffiri and verify your torque wrench does not exceed 15 inch-pounds; over-tightening will strip the internal thread paths or crush the right-side extractor spring channel liner, inducing permanent failure-to-extract stumbles**. Apply a conservative coating of high-viscosity firearms lubricant along the internal slide rails during your initial 100-round bench break-in loop. Explicitly verify your firearm is completely unloaded, the chamber is clear, and the workspace is proven safe before executing slide assembly transfers.
Key Features
- Monolithic 17-4 Stainless Core: Precision CNC-machined from a single block of high-tensile 17-4 weapon-grade stainless steel to eliminate frame deflection and guarantee longevity.
- Integrated Blowhole System (IBS): Blends a slide topstrap window with an inline single-port expansion chamber barrel to route gas vertically, delivering compensator performance within a standard factory length profile.
- Turn-Key Complete Assembly: Ships with a factory-vetted upper parts kit, internal channel liner, and standard recoil spring guide rod pre-installed to bypass custom bench fitting loops.
- Pre-Cut Trijicon RMR Footprint: Features a low-profile optic mounting pocket to mount elite micro red dots like the Trijicon SRO, Holosun 507C, or HS508T with zero intermediate adapter flex.
- Blacked-Out Co-Witness Sights: Raised suppressor/co-witness height iron sights sit perfectly within the lower-third view of your dot optic, ensuring a zero-fail tactical tracking backup loop.
- Durable Black Cerakote Coating: Coated in premium H-series Black Cerakote to shield raw steel surfaces from abrasive holster friction, sweat acidity, and harsh chemical cleaners.
Product Specifications
- Brand: Zaffiri Precision® (Precision machined, heat-treated, and custom Cerakoted natively by American engineers in Largo, Florida, USA)
- Product Line: Integrated Blowhole System (IBS) High-Performance Compensated Slides & Complete Upper Assemblies
- Model Series Designation: IBS Custom Optic-Ready Complete Slide – Glock® 17 Gen 3 Chunk Ported Edition
- SKU / MPN: CU-G17G3-IBS-RMR-BLK-CP-BN-BLNK (Alternative Identifiers: G17G3-IBS-CPBO-BLK-BLK / ZAF810220066355)
- UPC Barcode Number: 810220066355
- Receiver Frame Compatibility: Glock® 17 Gen 3 Platform Standard (Natively Fits Polymer80® PF940v2 Frames)
- Caliber Optimization: 9x19mm Parabellum / 9mm Luger High-Velocity Arrays
- Slide Material Architecture: Monolithic Billet 17-4 PH Stainless Steel structural framework with a singular top straps port window
- Slide Coating Finish: Heavy-Duty Type H Low-Reflective Matte Black Cerakote Protection Shroud
- Optics Cut Configuration: Pre-Machined Trijicon® RMR / SRO / Holosun 407c, 507c, & 508t Interface Footprint
- Barrel Material & Treatment: 416R Match-Grade Stainless Steel treated with Low-Friction Black Nitride (BN)
- Barrel Muzzle & Gas Profiling: Integrated Single-Port Expansion Chamber Chunk Port (CP) Compensated Muzzle
- Iron Sights Profile: Suppressor/Co-Witness Height Solid Blacked-Out Target Sights
- Internal Slide Setup: Factory Loaded Premium Steel Upper Parts Kit (UPK) & Striker Channel Liner
- Mechanical Installation Class: Drop-In Toolless Receiver Rack Frame Integration Swap
- Product Net Component Weight: ~16.50 oz (~1.03 lbs) Fully Dressed Complete Upper Package
- Total Packaging Shipping Mass: ~1.50 lbs (Enclosed Inside Secure Custom Heavy Foam-Padded Retail Storage Presentation Boxing)
