The Ultra Dot is a fine red dot set up but there's several on the market that are far lighter (like an ounce or less), more compact and will hold up to anything the Ultra Dot can handle and then some - of course, they cost an arm and a leg more than the Ultra Dot, but it's only money and you'll make more of that tomorrow - right??
I'm talking about Leupold's DeltaPoint, Aimpoint Micro's and Trijicon RMR and others.
There are some mounts out there that will set your red-dot fairly low, which is a good thing and then you have the 1911's with a milled slide and that will get that puppy down & dirty for fast and very accurate shooting.
The mounts for the DeltaPoint has to be purchased at the time you purchase the DeltaPoint, as they aren't sold seperately to my knowledge - there $50 and they have mounts for the S&W and a few other makes. You don't need mounts for a milled slide 1911, so that's $50.00 of the milling cost???
Here's what they look like on a S&W X-frame and also on a milled slide 1911. The dot on top of the front sight of the 1911 is actually a delta, but I couldn't capture it with my camera, so it looks like a glowing dot. From leather, you just bring that puppy up and your eye will search for that rear iron sight thats been milled off - what your eye will see is that delta - no searching by moving the barrel around like what sometimes happens with a high mount, you just put the tip of the delta on target as your squeezing the trigger and you've got a hit providing you squeeze that trigger properly.
The rear iron sight you see is a back-up sight installed in front of the DeltaPoint and regulated for 50 yards with 230 grain balls to the wall ammo.
Ole Timers with bad eyes wearing glasses are back in the game - the only problem for them now is overcoming the "shakes".