You know, like the ones on my VP9, that glow when exposed to light?

I know Meprolight makes the HK night sights, but I Google'd myself silly and still can't find out who makes the "regular" luminescent sights.

Anyone here know?

As an Hk fanboy I should know, but don't. I would bet you would find a quick answer on Hkpro forum.

I guess I always just figured they were made in house.

I believe those are made by Truglo.