This optic-ready slide assembly is the perfect way to finish off your Polymer80 .45 ACP build, or upgrade your current Gen 3 G21 pistol. With front and rear serrations, iron sight mounts, and an RMR footprint, this slide is ready for your favorite reflex sight and compatible irons.
Optics and RMR Cut Slide Fitment
The RMR Optic Cut is arguably the most common slide red dot mount. It's compatible with a wide range of popular pistol red dots, including Holosun red dots (like the 507C X2), Swampfox red dots, and of course, Trijicon's RMR.
Slide Kit Specs:
- Factory Glock® Internal Dimensions
- Factory Glock® Sights Cuts
- Model: Glock® 21 Gen 3
- Platform: Glock® 21
- Caliber: .45 ACP
- Barrel Finish: Nitride
What's Included:
- Barrel
- Firing pin
- Firing pin spring
- Firing pin spring cup
- Firing pin safety
- Firing pin safety spring
- Extractor
- Extractor depressor plunger
- Extractor depressor plunger spring
- Channel liner
- Spacer Sleeve
- Polymer guide rod (guide rod, washer, screw)
- Guide rod spring
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