LLC Mount, Fits Optics M0129 Red Dot Sight, Black Finish, Proprietary Moun

So this does fit a sig Romeo 5, but here’s the catch. Only fits if you are willing to simply modify it a little. All you have to do is grind,sand, dremel or whatever means you have to remove the the nub at the bottom. I took a chance @$17/18 and ordered it. As a soon as it arrived I took one look at it and instantly knew what I had to do, and literally within 5 minutes I had it ground flat , low mount installed and mounted. Very simple diy and a big money saver.

It's the first low profile sight to pop up when you search for "romeo 5 low mount" but it does not fit the sight.

Works wonderfully with the Sig MSR if you sand the bump down on the mount. I probably wouldn’t personally use this in much more than a dedicated target gun or a rim fire. That being said, it hasn’t let me down yet.

I did what one of the previous reviewers wrote and this low mount fit perfectly. Luckily I had a Dremel and took that small nub off. Took about 5 mins to remove it.

Great product. To be clear it DOES fit the sig Romeo 5 if u grind down the nub in the groove. It’s only aluminum

As far as I know, this mount will ONLY fit the Black Spider MO29 red dot sight.Amazon shows it as "frequently bought with" SIG Romeo 5 red dot. IT DOES NOT FIT THAT SIGHT AND WILL NOT FIT ANY OTHER RED DOT MADE TO FIT THE AIMPOINT T1 TYPE MOUNT.