For the BSA Scorpion SE models, designed to replace the original “body adaptor” part of the rifle. It’s made of Chrome Molybdeen steel and is blued to match the same finish as the original BSA parts. Designed for a wide pressure range (70-150 bar) to suit sub 12 ft/lbs (UK) and high power FAC models.
Where does the HuMa regulator get fitted?It is fitted in between the air reservoir/cylinder and the firing valve, adding 36-37mm to the length of your reservoir/cylinder, which means you may need to change your silencer/moderator or use a barrel extension.How easy is a HuMa regulator to fit and can I do it myself?The actual regulator does not take long to fit but you will also need to strip the rifle to replace/modify the transfer port and you will need to adjust the power as well. While the action is apart you can also service and tune some of the other parts of the rifle, following the guides on my website. Have a look at the fitting instructions page for an idea of what is involved and what tools you may need. If you are not comfortable fitting a regulator yourself you can get it fitted by a professional, there is a list of some tuners on the Guides & Links page on the website.What are the benefits to having a regulator fitted?Unregulated rifles tend to have a “power curve” with a “sweet spot”. The first few shots after a fill may be under powered then the power increases until you get to the sweet spot, where they are more consistent, then the power drops off as the rifle runs out of air. Once your rifle is regulated you are in the “sweet spot” for the whole string of shots, until the cylinder pressure reaches the regulator set pressure (pressure setting varies depending on calibre and barrel length). The regulator makes the rifle more consistent and more air efficient, which improves the shot count and can improve accuracy.
It also allows you to fill the rifle to a higher pressure, which will further improve the shot count compared to an unregulated rifle. Regulators are primarily for improving consistency and getting rid of the power curve, the fact that the shot count improves is a bonus.