Here’s mine w the Larue offset, 18350 Modlite body and DF head. To keep it slim, I sometimes run the X300 or even a Scout on the top rail directly. I have the MI handguard and a couple of the Mlok slots aren’t usable, but some are. I prefer a QD solution, again to keep it as small and light as possible. I keep a light in the bag just in case.
I’ve always liked the S&S Precision body. Keeps everything close and compact.
2 battery: https://www.sandsprecision.com/illum...mount-113.html
1 battery: https://www.sandsprecision.com/illum...ght-mount.html
For Rattler in a Bag - No light, but a pistol light in the bag, slapped on the rail at 12. Right now it's a TLR-1, but I think I'm going to switch to an XC1, for both a lower profile light and battery commonality (I'll be mounting an Aimpoint CompM5b hopefully before the end of the year).
For Rattler in the under bed safe - I'm setting up the long SD handguard with a Streamlight Pro-Tac 2 and tape switch, for all the lumens. Right now in the house, I'm running the LARP'er can, but I have plans to replace it - Coming Soon™.