SPA Artemis PR900W airgun regulator

BSA Bucaneer SE
  • BSA Bucaneer SE
  • BSA Bucaneer SE

The easiest and fastest installation regulator in the world.

This Airgun Regulator does not need drilling in the tank. Unscrew the air tube cap. Insert regulator on the bottom of air tube and then screw back in airtube.

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


This Airgun Regulator does not need drilling in the tank. Unscrew the air tube cap. Insert regulator on the bottom of airtube and then screw back in airtube.

Videos for installation and proper use regulator in the airgun SPA Artemis PR900W Stormrider

SPA Artemis PR900W video Installation

Setting output pressure on regulator

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

This video shows how to remove dirt and replace o-ring. In the video is used Gunpower regulator. The procedure is the same for other regulators.

Installation instruction for SPA Artemis PR900W air rifle pressure regulator

This Airgun Regulator has a simple installation without drilling in the tank. Installation is very easy. Just screw mounting stick on the regulator, unscrew plug on airtube and push regulator on bottom airtube. Unscrew mounting stick and screw plug back on airtube.

Spring with a black end is sent with the regulator.

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

SPA Artemis PR900W

1) Unscrewing airtube

Before removing plug we need to drain all air from airtube, we can shoot without pellets for drain air. Unscrew coupler between airtube and barrel, then remove the plug itself. For unscrewing plug we can use a mounting stick as a lever.

2) Mounting of the regulator

Screw the installation stick to the regulator and check o-ring, if it is clean and not damaged. Spray o-ring with silicone spray for preventing any damage. Push regulator to the bottom of airtube then unscrew mounting stick and screw quickfill plug back.

3) 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 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

4) Shipment contains:


Installation stick

Spare O-rings


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.
After regulator installation keep regulator in airtube under pressure at least on 20 bars.

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 Diana Stormrider are very similar to SPA Artemis PR900W

Regulators set on 110 bar, JSB 1,03g

Spa artemis PR900W  results with Altaros regulator

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