Do you have any experience with pistol cans in low light. I've shot my bedside gun in LL and it completely destroys dark adaption it is so bright. I tried supposed low flash powder and was left unimpressed. I would certainly consider one if it provided a big improvement in this area. I keep a Beretta 96D on bedside duty
I've not shot mine in low-light, but I'll put it on my cz and video next chance I get. I have access to a private indoor range.
OH BTW... Grand Power has a roller delayed 9mm subgun coming to the us. Supposed to be under 1k and is a proven reliable design all over the world... If you need to scratch that poor mp5 itch....