M*CARBO Brotherhood

Size Of Optic Mount Screws

Can someone confirm the size of the four hex flat head screws are 3mm x 0.50 x 30mm long?

My S2000 iron sights are lining up on the left 1/3 of the Romeo5 RedDot and not centered. I’m thinking about adding a washer under the mount to move the RedDot to the left to center up the iron sights. TIA


@jhaig99 They are 30mm long Jim, even the ones in the shim kit. I put 2 small brass washers between the mount’s top posts and the handguard before I got the kit and the screws fit ok. Don’t know what the thickness was.


@jhaig99 My Original are 3mm x75 x 20