Have you actually read SWAT? If you went through back issues, you'd probably see that 90% or more of the articles relate to firearms most anybody here could obtain (well, except for some of the california readers).
And what does it matter if they write about weapons we can't currently buy? I may never own an A-10 Thunderbolt, but I really enjoy reading about how they function and are built.
Not being able to purchase post 86 MG's isn't the fault of SWAT or any of its writers. It's the fault of politicians. When they offer the rest of us a glimpse into weapons we can't buy, they're providing a service, not rubbing our noses in it. Geez.