Mine sitting on my .17Rem with doubler and Oslon Black IR'd T20.
The T20 mount was from a UK fleabay seller and means I can adjust it with my left hand. The torch just needed a wrap of gaffer to get it to snugfit. I also had to take a stanley to the Photon to remove a nadge from the front of the torch mount grooves to get it to fit and sit flat....there's a slight moulding overlap there and it was either that or take some metal off the front of the mount to achieve the same thing.
The extension tube on the T20 is a bit of Floplast pipe which is a push fit to see if this has an effect in reducing any possible glare directly from the T20 hitting the back of the mod and consequently spoiling the view through the scope which is mounted in Optilock Lows and close to the boresight line.
The fishing rod coaster on the Photon focus is from fleabay and the cable tie on the torch is, well, just a cable tie.... both help adjustment... especially with gloves on.
The bit of gaffer holding the doubler's cap on is because I've got a 55mm 850nm camera filter in there held on by the cap - not convinced about using this but others have found it improves the contrast.