The best Glock 34 slides start with the Zaffiri Precision if you're looking for the best overall product without overspending to get features that don't really matter that much besides look.
Best Glock 34 Slides
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Zaffiri Precision RMR - Best Overall Glock 34 Slide
Zaffiri Precision's RTS Glock 34 slides has a considerable weight reduction, ensuring lightning-fast gun cycling. The slide comes coated with durable cerakote for a resilient surface finish.
The one element still absent is the addition of aggressive serration cuts on the slide's front.
Better Optics Compatibility - All RMR footprint optics
Spinta Precision Glock 34 Slide - Best For The Money
Spinta Precision Glock 34 slide is another great choice just like the Zaffiri Precision RTS, but this one features more serration cuts for better slide racking performance.
Available For Gen 3 - Fits Glock 17, Glock 22 and Glock 34 frames
Cover Plate Included - Cover plate is included but not iron sights
Lightening & Serration Cuts - Patterned window cuts long the slide to show off the barrel inside without compromising slide ruggedness
Better Optics Compatibility - RMR only
Dynamic Weapon Solutions - Simple & Slick Design
The Dynamic Weapon Solutions MRK III Reaper Glock 34 slide is only available for Gen 3 Glock frame. This works to convert any full size Glock 17, 22 to a long barrel Glock 34.
Aggressive Serrations - Top, front, rear and side serrations
Cover Plated Included - Cover plate with screws are included
Finish - Customer color requires additional lead time
Better Optics Compatibility - All RMR footprint optics
Glock 34 Slide Milling Options
If you would like to customize your factory Glock 34 Gen 3 slide to get milled for an optic, here are our recommendations: