So I have a Gen 4 TTI GM kit lying around and picked up a Gen 3 G35 w/ my GSSF coupon in the hopes of using it for USPSA limited. I was wondering what the difference is between the Gen 3 and Gen 4 kits. I'd hate to go buy another kit if it isn't necessary. I've installed both but don't have anything to compare it to at the moment. Thanks ahead of time.
Are threat bevels/glove bevels legal for production? Scalloped magazine release cuts?