I'll post a pic this evening. The metal nut which the bolt threads into has a protrusion into the rail space. You can feel a sharp edge when you run your finger over the piece. I noticed the light was difficult to slide on and off, sure enough it scrapped up the R side Glock rails slightly. Hardly noticeable, but I'd recommend everyone inspect their lights before mounting. I chewed up two glock rails before I noticed it.

Otherwise the light is easy to use, bright, light, of small form factor and cheap.

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