Complete DD rifle, 10.3" LW with a 10" DD lite rail. Vltor A5, LMT enhanced carrier are it for significant changes from original configuration. Muzzle device went from A2 to KX3 to BC 2.0 back to A2. T1 on Larue mount, DD fixed front sight, MBUIS rear. I am a fiddler, so it will likely change in the future. 

Had it for about 2 years, been through EAG Carbine 1 and TRICON Carbine 2, functioned very well through both, as well as daily duty use. Around 5,000 total rounds I'd guess. Did burn through gas rings on the original DD carrier, but has been fine with the LMT. Shoots very well and is plenty accurate.