STI 1911 / 2011 Slide Stop 45ACP Hard Chrome

The STI slide stop is machined 4140 carbon steel heat treated to 38 -42 Rockwell hardness, creating a very precise slide stop.

Availible in 45ACP Hard Chrome only.

This is to prevent a round in the magazine from prematurely activating the slide stop when the follower of the magazine should be activating the slide stop.