Dry fire is an important part of your handgun practice. The SIRT pistol is great practice if you have a Glock. I don't. You may not either. The Laserlyte laser trainer is supposed to be a one size fits all, and it works well for most. The trouble is that the rod is too long to work in a snubby, and strikers tend to knock it loose. Here's my experience with one.
Here are some new podcasts I listen to:
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Episode 30: Laser Trainers