The KPS was marketed by Springfield Armoury a couple of decades ago in a joint co-operation with Peters-Stahl.

The Omega Man : Springfield's Lost German 10mm

I had a .22 l.r. conversion made by KPS for my SIG P210 that was accurate and worked well but eventually had no more spare parts support.

I have one 1911 that could be considered a conversion, a 1943 steel frame with a Commander top and a .22 l.r. conversion with the floating chamber. Quality and accuracy are not on par with the KPS unit.





HCG in Germany is also making multi-calibre guns based on the 1911 platform.

Holden Custom Guns – Worldclass Firearms and Accessoires