They do actuly have the SF version which has the lower area of the sides removed(lower cheak area) so that you can get your cheak down on the stock and aim better. I can aim fine with an eotech with no risers on my HK416. Now an aimpoint with no riser is a lil hard... you have to cock your head very sideways to see down it... but a riser should fix that pretty well. I use an EOTech 553 so it is extra high any way and is no problem at all with the mask. I would rather NOT have a bloody face or missing teeth so I will take a mask any day, it is quite hard to hit on chicks at the club after a skirmish when you have missing teeth and big bloody staff infection looking bubbles from bbs, LOL.
Some wanna risk it though.