the only problem i have with this creation is that the ring around the gun is a complete ring, in the game it cut off about 1/4 off the ring, the section where it would havem met the gun. if you dont believe me, go on the cairo station vacation (halo 2 glitch allowing you to explore in amber clad and cairo station)
I must say this is very good. Especially the "In Amber Clad" docking. A little more detail of the ring ould be nice. Possibly reworking it with some SNOT (Studs Not On Top) and click hinges.
Image for comparison: http://images1.wikia.com/halo/images/5/5b/CairoStationCallouts.jpg