The new ergonomic design offers:
Lines underneath for a firmer grip when changing magazines
An inclination that follows the shape of the hand and which helps to press on it (as in "Tap-Rack-Bang")
Weight: 27.3g
 
For GLock generation 3/4/5 caliber 9mm and 40 S&W
 
Compatible with Magwell TR-1 or similar
 
The kit consists of:
Matt black anodised Aluminium CNC aluminum pad
Rear grub screw adjustment