LE6920MP-B ("M4 Carbine" rollmark) with an Aimpoint PRO on the standard QRP2 mount. Not looking to change much else at the moment...other than the trigger.
1/31 Update:
Swapped out the MOE stock for a CTR. Didn't like the rattling, even though it made no difference when shooting. Also hated the stock trigger. That did matter...so it now has an SSA. Also added an MSA sling mount up front and a Z-360, Gen 2 rear QD mount.
I am still liking it lightweight. After carrying one 24x7 for years, I'm not a fan of all the tactical bling...or free-float rails without heat shields that make you run for a pair of gloves when you are dumping. I have made an exception for the short stubby VFG that came with it though. It weighs nothing and I have found that it both helps with my thumb break grip and as a load bearing point when carrying...so I think I am good...until I change my mind.
Spending my cash mostly on ammo now...and will be leaving some more of it at the range tomorrow.