Since I did say this was a "long term test", why not another update?
Round count......around 3700 and change. I really don't bother keeping track anymore. The 4516 no dash is dead nuts reliable, in my experience. I have carried it under many different circumstances and shot many different loads in it. It just runs. And runs well. And very few folks are going to run that amount of rounds through ANY pistol. Especially during the current stupidity in ammo pricing and avaiability. Good thing I started this when I did. Without the "generosity" of the State providing me ammo, the round count wouldn't be as high as it is.
Still no malfunctions, other than the one noted with the bad mag. As I have gone back to instructing at the local range, as well as working there a few days a week, the 4516 ND is back on my person a few times a month. I have a DeSantis Nemesis holster that I use IWB to carry it. A Nexbelt gunbelt makes that a comfortable and secure option.
I also have many OWB holster options too. But the Don Hume JIT slide remains a favorite.
Anyways, I remain VERY satisfied with the 4516 ND. I have more than got my money out of it and continue to use and enjoy it. Still as accurate and reliable as when I originally purchased it. And through proper maintanence, replacing recoil springs every 3K and keeping TW25b grease on the rails, it displays very little wear. A well made pistol. And still an overlooked 45 carry gun. The thinnest and lightest of the all steel 3rd gen 45s. Regards 18DAI