03A3 rear sight base ?

[Doco Overboard]

I have a rear sight base that came off a drill rifle that's slightly bent. I want to piece the rear sight back together with some other parts I have on hand. When I stripped the old sight I noticed there was no set screw drilled in the right front of the base like other examples I have seen in the past.

The base had two holes drilled through that were not tapped and were not in the usual location. The question I have is were all A3 sight bases drilled and tapped for a set screw or were some just drifted on and staked in place originally.

This is the first time I seen a base like this I thought they all had the set screw in them. Just curious, thanks.

[John Beard]

Early and mid-production M'03-A3 sight bases had the set screw in the right front corner and were also staked in place. Later production bases were just staked in place with no set screw.

J.B.

[Doco Overboard]

Thanks for the info! This was the first one I had seen like this.