File this one under cool stuff for the day. A DIYer on Youtube has hacked an EOTech style optic and incorporated new reticles and features.

The Firearm Blog is reporting that the hack was done using an Arduino Pro Mini control board and I2C OLED display. Those parts together should run less than $15 shipped.

According to a comment exchange on the Youtube, the physical changes could actually make the sight more durable,

Q – That’s awesome, how well does it stand to the recoil? A – It should actually be more durable than the original, since I’ve removed all mechanical/moving parts. It also weighs a lot less due to small LiPo battery instead of 2xAA.

Here is the full video description,