It's all well and good to sell everything you can make, as fast as you can make it, but you have to innovate or you will ultimately die. Viridian is arguably the leader in the field of tactical lights. (more info about ad) The Viridian X5L, while not cheap, may be the best tool for the job. While I am one of Glock's biggest fan boys (for older models, anyway I can't stand the finger grooves on the Gen 3 models!), I think they are slipping badly. Viridian X5L Gen 2 Laser Sight and Tactical Light. Now, LOTS of trouble out of the Gen 4 models. I have heard many stories of earlier Glocks running to similar or much higher round counts with little or no trouble. I've shot it in a local competition for several years, went to several LE training classes with it and have shot the snot out of it practicing and have over 30,000 rds through it with NO malfs with good ammo (I did have some with some of my reloads that I didn't size properly, but that's hardly the gun's fault!). I've carried it on duty almost exclusively since I bought it and qualified with it. I have an early Glock 21 (serial number AEV4**US) that I bought in 1992 or 1993. This means that you have to have 2 separate recoil spring assemblies for the gun, one for practice ammo, one for SD/duty ammo. I have read that they have a lighter spring assembly out now that works reliably with lighter ammo, but that the lighter spring won't work well with hotter ammo. Seems that Glock went with real stiff springs so that it would cycle well with good, +P defensive ammo and didn't seem to think what would happen with lighter loaded practice ammo. I've read multiple reports of this problem with the new Gen 4 Glock 9mm pistols.