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Looks like it is threaded for your starcaps which are typically the same threads as the 3XBE and as long as there's 25mm in the clear between the crowns perimeter/raised edge then the beam expander will fit and that will let you light fireworks at 15-20 feet, you have to hold still or brace the unit and have a little patience the further away you are but it will make a noticeable difference, if your collimating lens is in a M9x0.5 barrel then you can trade it out for a G8 which is a longer FL than the typical 3 element although yours looks a bit like a single element but it's hard to tell, if it's a G2 or other short FL single element then switching to a G8 will make a big difference in how far you can reach to do work.
NDB7K75 same as NDB7875 is a good diode good for about 3W when overdriven at 2.4A but if you want a stronger one get a NDB7A75 good for 5W while there still around as all aforementioned diodes are discontinued but still around from pulls, 7A has higher divergence but not as bad as the 44 and works well with a long FL collimating lens and beam expander for tasks such as lighting fireworks.
Of course it goes without saying that lighting fireworks via. laser needs to be done safely and although I'm sure you know that I always feel the need to say it for any novice readers who may take a liking to the concept, enjoy.
NDB7K75 same as NDB7875 is a good diode good for about 3W when overdriven at 2.4A but if you want a stronger one get a NDB7A75 good for 5W while there still around as all aforementioned diodes are discontinued but still around from pulls, 7A has higher divergence but not as bad as the 44 and works well with a long FL collimating lens and beam expander for tasks such as lighting fireworks.
Of course it goes without saying that lighting fireworks via. laser needs to be done safely and although I'm sure you know that I always feel the need to say it for any novice readers who may take a liking to the concept, enjoy.