So, I'm finally getting around to posting my 9mm build. Due to work and life, I haven't gotten to the range with it yet, but hopefully soon. Because I'm not all that creative and carbonfly's 9mm is so badass, I pretty much recreated his with just a few changes. Below are the specs and pictures (keep in mind that I suck as a photographer). Once the stamp comes in, I'll add the stock and a vertical foregrip. I haven't decided if I want an optic yet, so that might be added later as well. Further down the road will be a suppressor.

LOWER
DDLES Colt style lower
Daniel Defense LPK
LWRCI Ultra Compact Stock (really just the buffer tube until the stamp comes back)
Heavybuffers Extra Heavy Ultra Compact Stock Buffer/Spring
Umbrella Corp. Grip 23
Phase 5 EBRv2
KNS FCG anti-rotation pins
Seekins billet mag release button
Metalform mags (Brownell's branded)
Magpul ASAP endplate (I will probably change this out to a QD)

UPPER
Quentin Tactical billet slick side upper
ADCO 5" barrel
ADCO thread protector
JP Enhanced 9mm BCG
BCM Gunfighter Mod 4 charging handle
Samson Star-4 quad rail
Magpul BUIS

Good job.

I love my DDLES Glock SBR.  I use an EoTech XPS2-0 on it.

XPS 2 or 3 is the route I'd go as well. I think I'll try it out with just the BUIS first.

Awesome build. Carbonfly's build has inspired me too though I am going with a QC10 Glock lower. I am undecided on an optic though an EOTech seems to fit the bill.