This is the Tyrant CNC Springfield Echelon Extended Slide Release.

Instantly improve your control with this high-quality extended slide release from Tyrant CNC!

Crafted from steel and aluminum and finished with a non-marring polymer backing, this slide release delivers superior durability and corrosion resistance. Thanks to the additional surface area and texturing, you’ll be able to manipulate your slide easier than ever. 

Best of all, it features a drop-in installation, meaning no gunsmithing is required! 

Note: some holster fitment may be affected due to the raised profile. 

Upgrade your Echelon and get ready to feel the difference!