Does anyone know about this? I just picked up a G27 with a Crimson trace gls-630. I am new to Glocks but the guy i got it from used to be a glock armorer and also used to work for crimson trace. He told me that this laser was crimson traces very first product, and its suppose to be pretty rare. they discontinued it shortly after they released it because the cost was way too much to put the laser into the frame of the gun. I guess the laser cost about 600 bucks when it was new? Does anyone know anything about this? I'm trying to get some kind of a value on the package? any help would be great. thanks. there's not a lot of info on it because i guess crimson trace took everything down.