TacFire BU-GLK19 Glock 19 Gen 3 Complete Slide - RMR Optics Cut, Includes Barrel and Recoil Assembly, Black Finish - BU-GLK19 - 729205590801
Product Description
Upgrading a factory Glock 19 for red dot optic staging or completing a custom Polymer80 (P80) 80% build often involves sourcing individual slide internals, barrels, recoil springs, and optics cuts separately. Buying individual components increases assembly time and overall cost while introducing potential tolerance stacked binding issues. The TacFire Glock 19 Gen 3 Complete Slide Assembly (BU-GLK19) solves staging complexity by delivering a fully assembled, drop-in upper receiver package featuring a factory-machined Trijicon RMR optics footprint.
Precision CNC-machined from high-strength 416 stainless steel and treated with a durable matte black Nitride finish, the BU-GLK19 slide offers superior resistance to holster wear, chemical cleaners, and environmental moisture. Front and rear serrations provide enhanced tactical grip for press-checks and racking under stress. The integrated optics cut is machined specifically for red dots sharing the Trijicon RMR footprint (such as the Holosun 407C/507C/508T and Trijicon RMR/SRO), complete with a removable cover plate for un-optic range use.
This complete upper assembly comes fully loaded out of the box with a match-grade 9mm replacement barrel, complete firing pin and extractor internal slide upper kit, polymer sights, and a heavy-duty recoil spring assembly. Engineered specifically for Glock 19 Gen 3 frames and G19-compatible polymer receivers, it offers true plug-and-play performance for custom handgun staging.
*Armorer Bench Notes & Real-World Staging Guidance:
Fitment & Receiver Compatibility Matrix: Fits standard Glock 19 Gen 3 Frames, Polymer80 PF940C frames, and aftermarket G19 Gen 3 9mm lower receivers. Optics cut footprint: Trijicon RMR Pattern (includes cover plate and mounting screws). Note: Will NOT fit Gen 4 or Gen 5 Glock frames without frame-adapter modifications.
Drop-In Installation Sequence:
- Safety check the lower frame receiver: ensure magazine is removed and frame well is completely clear.
- Apply a light drop of synthetic gun lubricant to the interior slide guide rails, hood interface, and barrel locking block recesses.
- Slide the assembled TacFire BU-GLK19 upper onto the frame rails from front to back until the slide lock engages.
- Perform manual function check: rack slide, verify firing pin reset, pull trigger to verify smooth sear release, and confirm slide lock-back on an empty magazine.
- To mount an optic: remove the RMR cover plate screws, install your red dot using correct length screws (ensuring right-side screw does not bind against the extractor depressor plunger channel), and torque to 12–15 in-lbs.
Key Features
- Complete Drop-In Assembly: Includes slide, match-grade 9mm barrel, internal upper parts kit, sights, and guide rod assembly.
- Factory Trijicon RMR Optics Cut: Direct-mount footprint for Trijicon RMR/SRO and Holosun 407C/507C optics; includes RMR cover plate.
- 416 Stainless Steel Construction: Precision CNC-machined slide body for long-term mechanical durability and lockup accuracy.
- Matte Black Nitride Finish: Hardened surface treatment shields against corrosion, scratches, and friction wear.
- Enhanced Front & Rear Serrations: Deeply cut slide serrations ensure positive hand traction during rapid press checks and clearing drills.
- Glock Gen 3 & P80 Compatible: Designed for standard Gen 3 G19 receiver dimensions and aftermarket compact frames.
Product Specifications
- Brand: TacFire
- Model: Glock 19 Gen 3 Complete Slide Assembly w/ RMR Cut
- MPN: BU-GLK19
- UPC: 729205590801
- Caliber: 9mm Luger (9x19mm)
- Platform Fitment: Glock 19 Gen 3 / Polymer80 PF940C
- Slide Material: 416 Stainless Steel
- Slide Finish: Matte Black Nitride
- Optic Cut Footprint: Trijicon RMR / Holosun 407C/507C
- Included Components: Slide, 9mm Barrel, Upper Internal Parts Kit, Recoil Spring Assembly, Sights, RMR Cover Plate
