You need a small punch.
Have a few beers then do it. Always easier to apply brute force to soft metal after you're buzzed.
Or, just have a friend do it. They're usually OK with buggering up your stuff. "Hey man, you told me to."
I use one of these: BOLT CATCH PIN PUNCH | Brownells
I always cover the side of the receiver with electrical tape when installing that roll pin. So far, no scratches in 8 builds with that method.
I always cover the side of the receiver with electrical tape when installing that roll pin. So far, no scratches in 8 builds with that method.