Nice review! I also have one on my Glock(G19). I wasn't able to find any adjustable LED at the time so I settled with th RM2 with suppressor sights. At the time OST didn't have any slides available so I sent in my slide and RMR for the milling and install. I believe it took 6 weeks(been a year I forgot
) I agree it's a pretty costly upgrade but you do get what you pay for.
I got a pretty good deal on the RMR so my total cost was $1100 including the G19.
Gen 2 G19 police trade in-$380otd
OST milling, sights, shipping-$300