I Would like to say While I do like the Solow mount, the downfall is there Customer support, I had a lot of trouble getting anyone from there to answer the phone, and when I left a message on their recorder, the wouldn’t call me back, when I e-mailed them, they wouldn't respond, the sent me the wrong color. I ordered Black, they sent me Silver, I opted to pay additionally for the black instead of returning the silver, thinking this would speed up the process. "Nope" Didn't happen, Took over 3 almost 4 weeks to finally get the Black mounts that I ordered. Other than that, they seem to be a good mount, course in the week that I have had them and mounted them, I haven’t had the chance to sight in my red dot....If I had it to do again, I would more than likely went with the B-Square just because they are a dime a dozen. B-Square offers a couple of different mounts for Mark II's with out the pre-drilled holes. Anyway, that’s my 2-cents worth
forgive my pet-peeve for poor customer service and Good Luck,