Pat McNamara turned me onto using an RMR as a primary carbine optic.
While I have been well served by Aimpoints for many years, since my accident in 2009, the Aimpoint dots now appear as misshapen blobs to my damaged vision, especially when using a 4x magnifier. In contrast the 3.5 MOA RMR06 dot is crisp. At 100 yds, it perfectly fits into the center of an SR1 target. The RMR06 mated to an RM34 mount makes for a very low profile optic. Hopefully LaRue will eventually get around to making an RMR mount for the AR15.