Yes, I found that out after purchasing and learning about guns. I like the one that installs behind the slide. It activates by pressing in when holstering and unholstering and the pistol is ready for use instantly upon drawing. Seems to me, most NDs occur on holstering and unholstering. After a dozen or two times in and out of the holster should make the action automatic. Still don't understand the grip or trigger safeties. They just make the anti-gunners happy to, in their ignorant minds, harder to let off a round. To me, they do nothing but make the gun a little more expensive and complicated, a Captain Dunsel trinket that really does nothing to make a gun safer to handle. In fact, it seems to me the trigger safety, that stupid two-piece nonsense, can make it not go bang in the middle of a physical altercation when I might not be able to get a decent grip on the gun to make it go bang into the bad guy.I can't tell from your post, but you may be aware that you can. It works, it is not that big a deal to install yourself with an included jig and it does not violate the warranty. There are multiple manufacturers.