Free: Contests & Raffles.
I recommend a low mount for a few reasons.#1 it lets you get down on the brace for a solid cheek weld. Notice your brace slopes down which is to bring your eye down and behind the factory sights and locked in with the gun.#2, The lower mount will mean the red-dot will match (co-witness) with your factory sights. If you have a dead battery, no big deal you can see your factory sights thru the red-dot. With the tall base you have to remove the red-dot to use the factory sights.
How does it shoot?
That safety does look to be placed a little bit too low for normal or above size hands.