If you do this the gun will not be eligable for IPSC Production or SSP in IDPA.
But if you're shifting to Standard or Open with your gun then CZ Custom has a magwell that fits the 75 which should also fit the Shadow.
http://czcustom.com/CZ_mag_wells.aspx
If it's like the ones on the 1911's it is held on by an extended length mainspring base plug pin.
If you have the tools and skills to do a more or less full strip down of most of the gun other than the action then adding a magwell will not be difficult.
If you do this the gun will not be eligable for IPSC Production or SSP in IDPA.
By the way. Shooting handguns in matches is hellishly fun. It's like the difference between riding a motorcycle in rush hour where you're stuck puttering along with the masses to racing on a track. You really should look into what events are on in your local area for IPSC, IDPA and even local club speed steel or similar. It'll give you a whole new reason for owning and using handguns.



























