Here's a cool shot I took recently of my pistola:

Here's another shot w/o the effect lighting:

Build details:
5.5" 9mm AR-15 Pistol
5.5" Rock River Arms 9mm Upper (1:10 twist barrel)
RRA 9mm bolt ramped by ADCO
Spike's Enhanced 9mm Magwell Block
5.4 oz 9mm buffer
Spike's buffer tube spacer
KNS Anti-rotation hammer & trigger pins (.154")
Daniel Defense Lite 4.0" railed handguards,
Troy M4 folding battle sights (front & rear),
Smith & Wesson M&P15 lower receiver w/DPMS lower parts kit with DPMS trigger group,
Mil-spec carbine buffer tube/carbine spring,
Magpul ASAP sling adapter,
Magpul MIAD grip,
Magpul enhanced trigger guard,
Gear Sector single point sling,
A1 flash hider (tried an A2 but couldn't get it to index properly w/out going too tight on threads)
Notes: The lower receiver was a virgin lower bought and built up from parts. Upper was a new RRA 10.5" 9mm upper that I had ADCO re-profile to lightweight contour (0.650") and cut it down to 5.5" with 1/2x36 threads.
edit: a few details left out: Metalform mags, Daniel Defense offset mount, Surefire X400 light/laser, Aimpoint T-1, LaRue T-1 mount. I think that covers it.

Nice build.