The product description states that it "perfectly fits a gas cylinder with a maximum diameter of 75 mm," which isn't true and no one has checked this. The Sabre Frontiersman gas tank has a diameter of 53 mm and the rubber part of this holster is already extremely tight— in my opinion, that's the absolute limit. In practice, it doesn't look good, as it's even hard to remove the cylinder, let alone insert it. I suspect I know where this value came from — if you put two fingers inside the rubber loop and stretch it hard, you can reach about 7.5 cm. However, this doesn't translate to the diameter of the cylinder you can realistically fit in there, but only to half of its circumference; this is exactly the case with the Sabre.