Primary Arms MD-ADS Micro Red Dots are back in stock by popular demand.
This microdot is comparable to an Aimpoint T1 Micro at less than 1/3 of the cost - $149.99
 
This red dot has a 50,000 hour battery life, is light weight, water-proof, fog-proof, and holds zero well under heavy recoil. There are plenty of reviews and torture tests online showing what a proven optic this is.

Risers are also in stock for $29.99
 
Dearborn Outdoors
15101 Century Dr suite 504
Dearborn, MI 48120
313-436-0262