I use the VX-R Patrol on my "universal carbine" as well and concur with the above statement. No doubt there are better scopes available but they are generally 1.5 - 2X the weight. My 16" mid length carbine uses a BCM ELW BFH upper and MBUS PRO offset BUIS and weighs 7.5 pounds. With near 1 MOA precision using a variety of ammo, I consider it an ideal set up for 10 to 300 yard engagements.
While a G17C/APL remains my primary HD weapon, I have recently put together a "pistol" using a BCM pistol lower and a BCM 11.5" 5.56 ELW upper. I swapped out the BCM buffer with a shorter MVB Micro Pistol Kit and am running a set of DD iron sights. At 26" in OAL and well under six pounds including a WML, I am finding it an intriguing set up to fill a HD/PDW role. With a target illuminated the irons are fast to pick up. At in-house distances, simply looking over the top of the rear sight and using just the front sight is quick and more than accurate enough for MOM hits - assuming a reasonable cheek weld is attained on the buffer tube. No doubt this is an aspect that an RDS offers some advantage.
I also concur that a laser/WML combo (such as a SF X400) could be an even better solution than a RDS in a in-the-house-close-range scenario.