It's a home assembled one.
10.5 in stainless barrel in .223 Wylde (so you can use 5.56 or .223). Spikes Tactical 'Crusader' lower. SB Tactical SBA3 pistol brace. KAC flash can, directs the sound forward so less concussion for the shooter on that short barrel. Magpul grip and forestock. Double sided single point sling back plate. Aimpoint PRO reddot optic. NiB coated BCG. Flip up front sight gas block, and flip up rear for back up. Can't remember the mfg. of the extended mag release. It all fits nicely into the $20 Wilson tennis racquet bag, along with some extra 30 and 40 round Magpul magazines loaded with Israeli green tip.
One other thing, and please don't bust my balls for this. It has a binary trigger from Fostech. Didn't have another firearm I wanted to put it on and it's definitely a fun switch. I've only used the binary feature at the range and mainly shoot it in normal mode when practicing.
I'm also thinking about night sights on the Glock, probably only the front. Got one of the Otis Glock tools ordered.
I picked up a Double Diamond connector, probably try a Ghost connector next time. Got what my local shop had.
cargaritaville are you using one of the larger backstraps? Normally I like a bigger gun, but the small size without a strap is feeling pretty good to me.
(click picture to enlarge)