What is the difference between co-witness and 1/3 Cowitness?

Lower One-Third Co-Witness Sights. The main difference between the two is the amount of iron sight that occupies the sight picture of your red dot. With absolute co-witness, you are getting 100% of the iron sight present through your red dot.

What is lower 1/3 Co-witness height?

There are 3 popular center heights, as picture 0 shows, one is 36mm(1.4″)—Absolute co-witness; one is 40.4mm(1.6 “)— Lower 1/3 co-witness; the other one is 38.1mm(15”).

What is the point of 1/3 Cowitness?

Lower 1/3 cowitness means that when you aim at your target, your iron sight will appear lower than your red dot. It is called a “lower 1/3” because your iron sight appears in the bottom 1/3 of your field of view. One benefit of this is that your iron sight won’t be in the way of your aim.

Can you co-Witness A 1X prism scope?

The only potential downside is that the new Vortex Spitfire AR 1X Prism Scope is fixed at a lower ⅓ co-witness height, versus the older model which allowed for a riser to be removed for an absolute co-witness mount.

Do you need Cowitness?

The primary reason that you should use co-witness sights is for that worst-case scenario. Whether you are in the military or just on an important hunt, co-witnessing your sights provides you with a back-up option in case that fancy optic fails.

What is full co-witness height?

There are typically two options, absolute and lower 1/3. ‘Absolute’ co-witness means that the iron sights, when properly aligned, sit in the center of the sight’s optical tube. ‘Lower 1/3’ co-witness uses a slightly taller mount so that properly aligned back-up iron sights sit slightly lower in the optical tube.

Is Eotech an absolute co witness?

All EOTECH sights are designed to co-Witness with iron sights on the standard AR15 platform. Sights with side buttons and/or factory equipped quick detach levers will co-witness in the lower 1/3 of the window. All other models will co-witness in the center of the window.

What is an absolute Cowitness?

Absolute cowitness – Optic is mounted at the same height as the iron sights or about 2.6″ above center of the bore. Lower 1/3 cowitness – optic is mounted slightly higher than the iron sights or about 2.8″ above center of the bore.

What is a prismatic scope?

A prism scope (sometimes also referred to as a prismatic scope) is a scope that uses a glass prism to focus an image as opposed to traditional rifle scopes which use a series of lenses.