Air Arms S400 or S500 FAC Series .177 or .22 Huma Regulator Air Arms S400 or S500 FAC Series .177 and .22 Huma

Price: $110.00

Part Number: HRAAS4500FAC


Need Pellets? Visit  Ammo

DescriptionSpecificationsRebuild Kit
For the Air Arms S400/S410/S500/S510 models Huma designed a regulator what can be placed inside the pressure tube with two o-rings on the regulator body which seals inside the tube wall.

Huma Air regulators reduce the primary high fill pressure in the cylinder to a steady lower pre-set working pressure. This gives the air rifle a consistent pellet speed resulting in less variations in the point of impact.

Frequently Asked Questions

The regulator comes preset from Huma Air with the most common pressure setting and also includes and adjustment feature with a pressure scale label allowing you to adjust the final output pressure that is suitable to your needs.

Click here for instruction to adjust the Huma Air regluator

Click here for a photo

The regulator is placed inside the pressure tube of the rifle and and is vented to the atmosphere requiring a hole to be drilled. If you are unfamiliar with installing an airgun regulator or working with high pressure air we recommend having it installed by a qualified gunsmith.

Click here for Installation Instructions

The Huma Air regulator is a “Component” that many times can benefit from having additional internal gun / valve / plumbing modifications done to optimize performance and efficiency.

Personal preference on PCP air gun performance varies from person to person, and as such, we at Trenier Outdoors do not offer in depth specific tuning or installation advice.  We recommend a professional installer / tuner to get the most from your Huma Air Regulator.

Airgun Tuners and Regulator Installers

Motorheads Air Gun Tuning Services

Manufacturer: Huma Air
For: Air Arms S400 or S500 FAC Series .177 and .22
Type: Internal
Vent: Atmosphere – drilling required

Huma Regulator Rebuild Kit Although Huma Air regulators are built with only high quality materials, the o-rings can wear over time. The rebuild kit contains a double replacement set of seals for the set screw and regulator piston as well as the external o-rings of the regulator. A replacement of the special valve disk and a syringe with high quality silcone grease to lubricate the regulator parts. Price $9.00 Buy

Other items you may need

Warne 216M JSB Pellets 15.89 Rifle Level PCP Foster Fitting
Rings Ammo Level Filling PCP