Up date on laser flashlight......sent an email to Anthony at Wolverine asking if the coiled wire on the light/laser would fit in the tiny bottom groove or relief cut under the new 4th gen spring assist mechanism , he said he researched it and no problem, laser ordered............it arrived and no how am I getting this installed with the spring assist mechanism, no room, especially with the hd coiled wire on the unit, so I took the spring assist out and of course it functions fine as a 3rd gen gun, which im happy about however, would like a laser/light combo that works with the spring assist, or its so much for the gen 4 unit!! All in all, happy with the quality of the light laser, not happy that its not intended for the 4th gen gun, this was an expensive upgrade that really doesn't work with the gun........any ideas grumpy?