Looking to dip my toes into the red dot pool for handguns. It will be going on a Sig P365XL and I'm looking at the Holosun 407K, 507K and the new EPS coming out. Is there a preferred MOA? The EPS looks to only have 6MOA and the others have a dot, circle and dot circle options. I watched a few videos and some recommend 2MOA and some recommend 6MOA. I don't any experience with handgun red dots, so I'm not sure of the benefits/drawbacks of each. I do have an Aimpoint T1 (2MOA) on my AR.

I own 3, 6, 9 on various MRDS.   Higher coverage was supposed to be faster.   I prefer 3 moving forward.

3.25 on my RMRcc and 4 on my RMSc's. I always prefer the smaller dots.

Try a couple out and be ready to change your assumptions and preferences after you put thousands of rounds down range with a red dot on a pistol.

Depends on what your going to use it for. I like a small dot for the range and a larger dot on defense pistols.  Changing the brightness changes the dot size as well.  A 365 xl would be a 3 moa for me.  I dont like the large dots.