Edgun Matador R5M tuning regulator. 2nd picture: Top Huma, under: Original reg.

This set allows you to gain maximum power out of your R5M with lower regulator pressure.
This tuning set replaces the complete original regulator and regulator body and is an “one on one” replacement.
You can unscrew the original regulator house from the Edgun valve house and replace it with the complete power plenum with regulator.
 

The bennefits of the Edgun Matador R5M tuning regulator are:

Easy adjustable regulator due to the pressure scale, so you can do all the fine tuning yourself
This regulator has a wide pressure range to cover all calibers
A XXL power volume plenum what will provide you the right capacity of regulated air volume
The ultra compact build of the regulator will give you even more regulated volume
Excellent consistency
Higher accuracy of your rifle due to the elimination of the pellet speed fluctuations

These regulators are vented to the atmosphere without any modification to your pressure tube needed so no creeping up in power.