Absolute co-witness means that red dot sight and iron sight align with each other. The iron sight and the center dot are at the center of the window.
Pros: It allows quick target acquisition.
Cons: It obstructs part of your view.
Lower 1/3 co-witness means the red dot sight is settled over the iron sight. The iron sight is at the 1/3 of the window. Two kinds of lower 1/3 co-witness, the dot at the center of the window or the dot at the center of the iron sight.
Pros: It provides wider view, compared to absolute co-witness.
Cons: You will need to adjust the line of sight when switching between the red dot sight and iron sight.
Check the Picture 1.
If you have flip-up iron sight, absolute co-witness will work better for you. You will have a standard height when you flip down the sight. Try our Scrapper 1x25 Red Dot Sight Gen II
If yours is fixed iron sight, 1/3 co-witness might be more suitable for you. Try our MAVERICK 1X22 S-SOP
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Angled spotting scope is relatively difficult for beginners and is better for spotting at an angle.Straight spotting scope is more beginner-friendly and is better for spotting animals on the ground and viewing in narrow spaces.
1x prism scope is developed for shooters with astigmatism.
It possess true 1x for two eyes open shooting.
The center dot is visible even when the illumination fails.
What is your red dot footprint?
Does the pistol have optics-ready system?
Which adapter plate do you need?