I have been watching and waiting for this one for a while now. The Tactical Solutions TSG-22 is new .22LR conversion for Glocks and it brings with it some unique features that might just make it the premier conversion unit for people who really train with their Glocks.
The 3 most attractive features to me are also reasons that people who want a serious training weapon will want: it is machined from STEEL for realistic weight, it takes any Glock sights so you can replicate your serious gun, and it has last round hold open so you can train reloads realistically. On top of all that, Tactical Solutions makes some seriously accurate barrels so this one should be quite accurate.
If this is at least as reliable as comparable conversion units that are already on the market, it will be a huge success.