Remongton R1 - 1911 target sight - dovetail size?

Have a Rem R1 on its way to me via a raffle and want to start doing some bullseye shooting with it. I am hearing that the "Enhanced" model has a dovetail size that will fit Bo-Mar sights, but I cannot seem to get a solid answer as to what sights will fit the dovetail on the std R1 model. According to customer service at Remington, it is a metric size.

Anyone here have the actual dimensions so that I can start looking at various sights? The front dovetail as well if you know it would be helpful.

TYIA

Give a call to Brownells (800-741-0015) they sell Heinie, Kensight, STI and others.

Know all about them. First I need solid data on the dovetail size from a person that has actually replaced them.

Am hearing now on other boards that they are std Novac on the front and GI size on the rear.

it's actually a frankenNovak on the back...

nobody wants to claim it. it's closer to a GI.

I did manage to fit a 10-8 rear sight on it that works well...