AirArms EV2 (EVO2) regulator

Airgun regulator airarms EVO2
  • AirArms EV2 (EVO2)
  • Airgun regulator airarms EVO2

This Airgun Regulator does not need drilling in the tank. No degrade air gauge (gauge shows pressure in air tank, not regulated pressure). Simple installation.

  • 250 char. max
Caliber: .177 /4.5mm
Required energy with regulator: 7,5J / 5,5 ft/lbs


Videos for installation and proper use regulator in the airgun AirArms EV2

AirArms EV2 (EVO2) video installation

What to do when your output pressure increasing over time? This is most likely caused by dirt on o-ring on plastic screw.

In this video is shown how to remove dirt and replace o-ring. In video is used Gunpower regulator. Procedure is the same for other regulators.

AirArms  EV2 air rifle pressure regulator installation instructions

It is appropriate before reading the instructions to look at the video instructions and then read the instructions for avoiding common mistakes during installation.

Drain all air from airtube and unscrew coupler between airtube and barrel. Unscrew the brass screw on original regulator and mount Altaros regulator.
Regulator can be used in cascades with original regulator, or without orginial regulator.
While using it with the original Regulator, regulator can improve consistency with longer pauses in individual shots (no major change in speed).
When used as the main regulator must be in the original regulator Unscrew seat (screw inside the regulator – which is located in hole under the screw unscrewed during the installation in video) for 3 turns.

Setting pressure of airgun regulator

Altaros regulator output pressure can be set from 100bar (1450 PSI) to 150bar (2200 PSI). For a quick setting is on regulator engraved scale according to which the desired output pressure can be set. The total scale range of 100-150bar corresponds to approximately 1/2- turn. Unscrewing, or screwing setting screw more than 1 turn may result in a malfunction of the regulation and scale will not show you regulated pressure. Groove on red marked half of setting plastic screw represents pointer which shows you currently set pressure on the scale. To change the pressure on the regulator, just simply rotate the set screw with the flat screwdriver in the appropriate direction according to regulator scale.
Regulator pressure scale with three different settings


Never unscrew regulator brass screw plugs! If you do so the regulator immediately stops working and repair is only possible at the manufacturer! Regulator must be installed no later than six months after purchase. Ideally immediately upon delivery.

You must keep maximum cleanness in the entire pressure system (airtube and outer o-rings).

The disassembly of the internal parts regulator or failure at the exact installation procedure means that you can not claim the warranty. Since the regulator is not original part from the manufacturer’s, installation is on your own responsibility.

Results with installed regulator in air gun AirArms EV2

Cascade regulation: the original evo regulator is set on 90 bar (by manufacturer), altaros regulator is set on 100 bar.

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