Vintage 22 single shot conversion unit designed to replace the slide assembly on a 1911. It's a well made piece, and I am unsure of the timeframe in which it was developed and sold, but I would assume teens or twenties. My son and I fired it at cans and had a good time chasing them around the range.
Thought I would share a neat old piece that you rarely see anymore. This one is particularly early compared with the couple other I have seen by both serial number and lack of makers stamp on the side. It has a half magazine to insert in the magwell to keep crapola out, since a full mag cannot be inserted with this kit installed. The extractor works much like one on a break open shotgun