Okay, I may take a beating here. I put a G2 trigger group in my SAR1. Great for about 350 rounds. Then the trigger pin walked out of the receiver. Has anyone had this happen besides me? I'm assuming I failed to get the shepards hook installed correctly. There was no play in the pin when I started, but clearly it rattled loose.

I have one of the retainer plates, but don't like it because it causes the pin to rotate when the trigger is pulled.

Any suggestions to avoid a repeat? Thanks. Don't flame me, this is the first mistake I've ever made.

Quoted: Don't flame me, this is the first mistake I've ever made.

wow! I made several mistakes just today, I must learn your one mistake per lifetime technique!

I had the same thing happen.  The Sheppards Hook is a bitch, you can't tell definitely wether it's properly installed by a simple visual inspection.  It may work well on an assembly line where a trained operator has a couple hundred repetitions to learn, but for an amateur gunsmith it sucks.  I used the RSA plate on my SAR3.  I used e-clips on my SA85M because I was too cheap to pay $10.00 S&H on a part that could be fit into a 1st Class envelope.  The clips have had about 300 rounds through them and haven't drifted.

I could probably learn how to properly install the Sheppards Hook with some work, but there are other ways that are simpler and more certain.