If memory serves me right{sometimes}, I do not have one in the shop at present, but I believe the trigger assembly as with the rest of the gun is simalar to the BROWNING GOLD, push out your 2 pins look for a spring v-clip on the side of the assembly , carefully remove and watch for the detent pin, remove these parts the safty block should slide out after this reverse block and reinstall.
good luck
RON KONTOWSKY