They are a no-go in the States as folks down there can buy a much nicer firearm for less money than Armalite would have to charge for them. Up here, they would rival xcr's, etc in price and just wouldn't be worth it.
This is a big reason for the fall of the modern 180B. In the US you can buy a quality AR for under $1000 that has more aftermarket support than a Honda civic. The 180B is a good rifle but our desire for it is primarily due to it's non restricted status and we aren't a large enough market to justify production of a rifle.
There is a reason it faded out. The 180 receiver really sucks.
Not worth all your time and trouble. Save the money and get a SA
Not true at all, there is nothing wrong with the receiver as long as you don't abuse the rifle.
Even HK had issues with the SL8-4's when they first came out. I owned one of the first ones that made it to Canada and had the lower receiver crack, then the replacement cracked, I sold it when I got the third one, I bought a newer one a couple years ago and it performed perfectly. HK acknowledged the problem, made the necessary correction and eliminated the problem. Just like Armalite did, they got a bad batch of polymer, they replaced the affected units and continued on with better QC to reduce the chances of it happening again.
The small percentage of rifles that have broken are not as big a deal as people make them out to be, reading the replies of the haters would lead someone to think they're all a ticking time bomb and eventually they'll all break.
I've owned a SA and while it was a nice rifle and very well built it didn't shoot any better than my 180B-2 and cost 3x what you can get a 180 for and uses harder to find, more expensive mags. If you're looking to spend $3000+ on a rifle then a non restricted ACR is the best rifle we can get right now. An ACR will outshoot a SA and even though the support isn't really there you can get parts for it. Most ACR owners who opt for a quality stainless barrel are shooting 1moa or very close to it with decent ammo.