Slide Lock Lever for Glock 21 Gen 3 – Compatibility Guide
Why upgrading your slide lock lever matters for the Glock 21 Gen 3
The Glock 21 Gen 3 is a workhorse, a favorite in duty, competition, and concealed carry. It delivers consistent performance and reliability under pressure. You already know how it feels on the range, delivering power and accuracy.
Shooters upgrade their slide lock lever for enhanced reliability and better feel during operation. NDZ’s slide lock lever is precision-machined, guaranteed to outperform factory parts. Reduced wear, faster engagement, and a tactile feel. It’s not just about replacement; it’s about upgrading your firearm.
Shop Slide Lock Lever for your Glock 21 Gen 3? Browse this part at NDZ Performance — ships from the US with fast processing.
| Part SKU | Part Name | Firearm Model | Compatible |
| JEN-ESLL-17-BLK | Jentra Glock Gen 1-4 Extended Slide Lock Lever, Black | Glock 21 Gen 3 | Yes — Verified |
Get Yours from NDZ Performance
Precision-machined in the USA. Ships fast. View JEN-ESLL-17-BLK on NDZ Performance
Yes, it’s a drop-in part requiring basic tools for installation.
It fits Glock Gen 1-4, see product page for full compatibility.
The package includes the slide lock lever and installation guide.
NDZ’s version is CNC-machined for durability and improved function over stock parts.
Ready to upgrade your Glock 21 Gen 3? Get your Slide Lock Lever at NDZ Performance and experience the difference quality aftermarket parts make.