Quote Originally Posted by john c View Post
Ultradots have always worked well for me, but I've always had them on frame mounts (on pistols) or on rifles. I guess having them on reciprocating slides, like a lot of red dots, causes the problems.

What mount did you use for mounting it on a carryhandle?
A B-Square with weaver rings then upgraded to an ARMS mount back when they were the new hotness.