I will agree that it is not the same thing in one way: you have to pay for all of it. As others have mentioned, if it's an issued, agency-owned weapon, the agency is gonna pay for the parts and maintenance. That is a big deal if you shoot a lot and have to do small parts and spring replacement at regular intervals.
There are Armorers, and then there are 'armorers'. The latter are those dudes who attended a 1-2 day Factory Armorer Course, and are the agency "Gun Guy". They are often tinkerers, and frankly just as likely to fuck up your gun as fix anything. Most agencies, if they have anything, have someone who fits into this category. So "Armorer Support" is not the silver bullet that people think it is. I think that's the point the guys are trying to get across.
I was very fortunate in my former job to have two full-time, dedicated armorers working on my staff at the range. They were officers who tested for the position, attended factory armorer training for every weapon system we used (including some Master Certification and Instructor courses), and also underwent a six month in house apprenticeship. They've been in the job for years, and have extensive inside industry knowledge and contacts. They bring a level of skill and knowledge that a 1-2 day class on detail stripping just can't match. Ask @
Wayne Dobbs about the knowledge and competence of SFPD's two armorers.
All that said, this was the exception, not the rule, in our area. The support for most agencies was non-existent. We often fielded calls for help from other agencies' officers, especially for personally owned duty guns. My guys would stick around and meet those officers ON THEIR OWN TIME....because that's the kind of dudes they are. But again....exception, not the rule. Most other agencies send the guns back to the factory for a fix. Yes....they might have a spare gun to hand out (or likely not if it's personally owned). And yes, it's more expensive and inconvenient to have to do this as a private citizen (believe me I know now that I IS one). But heck....hasn't that been the general consensus on this forum for the last decade?