Bolt head roll pin

[sew0177]

What size roll pin holds the extractor and ejector plunger to the bolt head?

[geargrinder]

The extractor doesn't use a pin. It's captured in a slot and held with a detent ball.

The ejector is just a regular pin, not a roll pin. I don't know the size, but here's the replacement from Midway.

http://www.midwayusa.com/viewProduct/?productNumber=782010