Anyone ever seen a 3rd Generation pistol with a keyed(?) metal trigger lock built into the trigger guard - example is 2000 vintage 3913TSW with a bump on bottom of trigger guard below trigger - not sure how it works but it appears to be able to block trigger movement aft by interfering with tip of trigger. Claimed to be early model 3913TSW, but TDT prefix with late (8rd) mag with rail and LCI port - more likely After market?
