Streamlight TLR-1

[DarrellM5]

Will this mount on any handgun? Say SIG?

I've used it on my P229. It does make a couple of small marks on the gun metal, but nothing a touch up pen won't fix.

Also, Streamlight sells different size spacers (or shims, I'm not sure what they're called) to engage the rail slots on some different models of firearms.

[cruzthepug]

Just picked up one on ebay for $86 shipped.