If you ever find a ‘Unique’ Model 52 22 LR, made in France, buy it! It is based on the Browning Hi-Power system and is one really fine little pistol. I recently acquired a 3 inch barrel model. What a fine little pistol it is!
I have a Unique model L. It is nothing like a Browning Hi-Power but it does have a 3” barrel, is pretty accurate and is remarkably reliable.
I have owned it for many years and it is the pistol I often put in my pocket when I walk around the yard or nearby woods. It has never jammed, ever, tho I do recall it failing to ignite a cartridge a couple of times. That is not too unusual for .22 rimfire rounds. I have had one do that occasionally with just about any .22 including rifles.