Not much, but here is mine so far. Just started buying/collecting last March.
I have swapped out the grips on th 1911, added a TLR-4 to the xdm, and put magpul furniture on the AR along with a red dot & scope, and put a low profile gas block on it. New magpul ACS stock should be in friday
Ordered a hogue overmold stock and forearm, B-Square saddle mount, and Truglo fiber optic sight for the 870, should be here friday.