Want to change the oring mount to a QR clamp, has anyone done it? and what clamp to use?

Does it have the same mount as most lights, with a M4 mounting bolt?

If so this fits most and is a really good mount –

http://www.candb-seen.co.uk/product-quick-release-mt.html

Just the job! Cheers pal.

I can second this clamp. Just got one and its rock solid with little pressure required. Tested last night and zero movement. Can’t believe I had been putting up with constantly moving o rings for years!