just got a eotech 517 for my birthday couple weeks ago,thought i could mount on my colt a2 carry handle (arms a2 plus mount) but unfortunately does not co-witness at all w/ the standard a2 style front and rear sights. so,.......have changed the plan up a little (much to my wife's chagrin) to buy a complete new flat top upper in 5.56 w/the standard a2 front sight post and all the other options that i liked on my colt 6530 upper. okay,so the question is: will i have a lower 1/3rd. co-witness w/my raised base 517 and using the matech rear buis? i let a co-worker take my eotech 517 home w/ him to try it on his flat top upper and he came back into work the next day and drew me a picture of what he had seen thru my eotech.....and it sure sounds as though it's a lower 1/3rd. i have yet to buy my new upper as i'm still price shopping for exactly what i want.thanks for any/all replies.
well hell,i'm just glad i'm hopefully gonna get a lower 1/3......i bought it w/the intention of being somewhat hampered to access the controls on the other models,so i opted for the side activated buttons. woulda,coulda,shoulda......
I have my eotech with the co witness. The only reason I have it set up for it is because I have folding sights. I
could not have done it any other way. I would have problems looking at the dot and then the sights.
I would have had to do the lower cowit if I had non folding sights
thing is the 511 and the 512 dont have the added 7mm riser on them as does the 516,517,and the 557.thats why my friend at work could'nt understand the lower 1/3 co-wit that he was seeing w/ my 517 on his flattie upper. he's used to the absolute co-wit and hadnt ever seen it before. i'm just glad i'll get a lower 1/3rd,i'd hate to put out the bread for a new upper only to find it still would'nt co-wit. anyone using the matech buis w/their eotech's?