I have a chance to buy a very slightly used Xiphos light for $50. It's in new condition but no box. Does anybody have one? I plan on probably mounting it on a dedicated HD Glock 17. Any pros or cons or experiences? I was going to use a Procyon light but I can't find the rail inserts that fit the Glock rails so it won't stay on the gun and I haven't got around to finding a replacement set. I like the strobe feature, and I'm left handed if that matters.