Yep, as Lightfoot says, almost all off the 99R's that were switched from a rear sight to having a Redfield receiver sight and rear sight blank show scratches on the bluing behind the rear sight slot. But either way, whether original or with sights swapped out, it's more "desirable" with the Redfield. Those are night sights.
But would the factory have used a Lyman spacer?
My heart's in the mountains, my heart is not here. My heart's in the mountains, chasing the deer.
