I've got a Springfield XD40 4" Service Model
The day I bought it.
With Don's Guide Rod/22lb Spring and a cheap Tactical light from amazon
I also just got finished building my first AR15
No mag with stock fully extended
With an old GI mag and the stock not extended
The build on the AR15 currently is:
-Surplus Ammo & Arms AR15 Stripped Lower Receiver
-DPMS Panther Arms A-15 Lower Receiver Parts Kit
-Common style Buttstock, buffer tube, buffer and spring
-Magpul MOE Trigger Guard
-Stag Upper Receiver
-Midwest Industries Gen 2 Free Float Hand guard - 10"
-Magpul MBUS Front and Rear Folding Sights
I plan on changing the grip and the butt stock, probably an upgraded trigger in the near future and obviously some optics when I can afford a nice Trijicon ACOG...