If it's an oring chain then it's a press fit. I use a 1/4-20 nut and with vice grips I work the plate back and forth until it is seated over studs and the orings. Then I take n n pliers and put the closed end of the clip on the front stud facing up or 90 degrees from the chain upwards. Then I rotate it down and use a teenie tiny screwdriver to flip the lower open side of the clip over the rear stud and - VOILA - she's done.........
All our government does is distract us while they steal from us, misspend our tax $ and ruin our country