Shooting Sports Innovations made modification to the 1.1 version to work in both Tanfoglio and CZ model guns. Do still perform a slide off fit check in the frame before doing a full assembly. Like all custom parts some fitting could be needed, but we did our best to hopefully eliminate that.
The Pin size is 0.197, ALL 1.1 versions have been treated with Black Nitride for durability.
Machined out of one solid piece of 17-4 stainless steel. Based on the very popular Nitro Fin for the 2011 guns. In most applications if your pin size matches….all you have to do is slide your old slide stop out, slide this one in, and you have a thumb rest on your Limited or Open USPSA gun. This product has been tested in EAA Witness Tanfoglio LIMITED, STOCK I II III, Witness Match, CZ Shadow 2, CZ SP01, CZ75 and CZ75b firearms. Read below!!!
Check your current slide lock for pin size. Use caution test fitting it before test firing at the range. The Nitro Fin by design fits close inside the slide lock relief of the frame, some gunsmith work may be required.
The Pin size is 0.197:
Pin design is very similar to CZ firearms. Be aware that if you do purchase this for a CZ firearm, Fitting WILL DEFINITELY be required.
THUMB REST DOES NOT LOCK THE SLIDE BACK ON THE LAST ROUND OR MANUALLY.