Primary Arms SLx RS-10 3 MOA Red Dot Sight - Black

The Primary Arms SLx RS-10 is an open mini red dot weighing only 30 g. The body is 7075 aluminium, and it is IP67 rated waterproof and fog resistant. The 23 x 19 mm lens is multi-coated, and the 3 MOA dot is quick to find with unlimited eye relief. It uses the Docter/Noblex footprint (different from the RS-10R's RMR/507c footprint).

There are 11 brightness settings in total, two of them for night vision, set with rubberised side buttons. A CR2032 battery lasts up to 40,000 hours at medium brightness, and AutoLive motion sensing saves battery further.