The epitome of red dots - Aimpoint CompM4 Red Dot Sight w/ QRP2 Mount

Probably not much more to be said about this CompM4s, the eternal battery life, ruggedness and one of the cleanest and sharpest dots in the business. Adjusting the sight for my 300BLK hunting AR was super quick, about 16 clicks down and 8 clicks right. The POI moved as expected with each click, which seems to be a rarity, even on some expensive scopes. One tip: use a lithium AA battery, they are amazingly light, work in a broader temperature range and will last forever.