I posted in another thread - but saw this sticky so figured I'd post here too...
I took my AR in today to have stubborn bullet button (from M&P15) removed and install Radlock convertible (that I purchased from them over the weekend)... very polite and friendly customer service - and swift swap of bullet buttons free of charge.
The customer service and overall vibe at this place is among the best I've encountered at a gun shop (and I've been to all of 'em in the area)... I will definitely return and recommend!
BTW, yes BB are easy to install - but the one that S&W put on my M&P was real stubborn - it wouldn't come out with a normal BB wrench and nothing else I tried worked - Riflegear had experience with difficult bullet buttons and swapped it in a few short minutes... the customer service and knowledgeable personnel is what impresses me the most.