The Z32 had a shock absorbing system inside it, a metal ring, foam and a plastic ring at the lens, to protect the Incan Bulb, the Z32 was from the 951/952 weapon light, https://www.ebay.com/itm/Surefire-M951-tactical-weapon-light-USED/123019658714?hash=item1ca48b05da:g:y6IAAOSwt2paqFPy
Here is a good idea what an original looks like, click the alternative view picture below and then go up to check the magnified picture to see if yours looks like it…