https://www.iwa.info/en/ausstellerprodukte/iwa23/product-10321483/rti-externally-adjustable-cylinder-regulator

RTI Externally Adjustable Cylinder Regulator is a pressure regulator for almost any airgun with cylindrical reservoir. It is externally adjustable from 0 to 200 bar. Regulator can be fitted in cylinders with inner diameter from 25mm to 35mm.

RTI Arms has proven to be a unique, affordable and inovative manufacturer in airgun world with the Priest airgun in different calibers. They have built custom electronic pressure sensors to measure behavior of the valving mechanism and optimise it as much as possible. They are using CZ and LW barrels and each rifle is tested at 35m before packed.

Priest is known to be very reliable, super simple and very affordable PCP airgun on the market made in EU. It has some unique/handy features, such as removable bottle which allows you to shoot a rifle with a bottle on our waist, ambidextrous magazine, straight pull cocking placed up front on the left side, simple caliber change mechanism, extreme low profile (height of the rifle). Rifle is known for its extreme accuracy and shot count due to precisely measured valving mechanism and reliable pressure regulator.