Anyone know for sure if the new 90 tooth mounts will be backwards compatible like 18 and 51 toothers?
They are not compatible.
As Scott said, no they are not compatible.
They use an entirely different setup of threads and bearing surfaces:
AAC should produce identical bodies in a couple of sizes and offer them all with 51 and 90t attachments. Instead of having three mounts in inventory simultaneously and a mash up of cans that do and don’t fit.
Or the ability to retro fit older model cans. I have 4 mounts and a can that the government won’t even let me use yet that is already outdated…
Add me to the list of folks waiting to be able use their outdated shit…
Classic AAC retardation.
You couldn’t run a fucking operation any worse. How do you piss off your OWN customers?
I’m glad I’m still on the 18t mount.
Count me in as well…
I feel your pain, as you can add me to the list of people waiting now for an outdated product as well. I’m still waiting to be able to pick up my M4 2000 (51t mount)
But I blame the NFA laws and the back logged BATF for that.
Although how would you propose to run the operation? Stop making and developing new products or not put them out because it will make someone else’s stuff obsolete?
AAC isnt really doing anything different than what car companies, Microsoft, or Apple or anyone else is doing with their respective products.
I am fairly new to the world of NFA, so if you know something I don’t about AAC being underhanded with their marketing tactics or sales practices please do tell.
At least AAC still keeps stocks of parts for their older designs instead of totally cutting you off from servicing their older products (*coughcough HK)
The difference between AAC and cars, electronics and the like is that you don’t have to wait 6 months before you can drive your car or use your new cell phone or computer. Yes, there will be upgrades and new products being released but you can either wait for the new product or purchase a product that you know will be replaced shortly. With NFA, you can’t do this because you are at the mercy of the examiners. For example. I learned about the Mini4, researched it, asked questions and even started a thread on here and received a lot of input from guys on here that are affiliated with AAC. The serial number on my Mini4 is 36. Yup, 36. I still haven’t received my From 4 back and since SHOT, my Mini4 is out dated.
I think the best thing AAC can do about this situation is to put into their design a way to change the suppressor to accept any new adapter that they design. Like a product enhancement program. This would keep a lot of customers happy-er.
Yes, this is what AAC could. Offer to retro fit cans , and make money doing so.
I just sent my Nightforce in and changed it to mil mil with their NEW HIGH SPEED , ZERO STOP TURRETS. Their newest latest greatest stuff Cost me a fortune, but at least they let me do it.
That’s what where talking about. Nightforce has a fan club:D:D
They got tired of suing forum users and disagreeing with Surefire about the series of Inconel used in their own blast baffles (AAC claims SF uses 600 series, Surefire claims they use 700 series). This was inevitable, lol
I literally found out about the SR5 and new mount the night before I was going to order an M4-2000…
Are you going to hold off an extra 6 months to a year and get it?
While I was FILING my paperwork, 2 months got added to the wait time people are experiencing.
You are going to have to wait until the can is manufactured and pre-orders, etc. are filled and then jump on one.
I predict that at soonest, you will have one in your hands in 1 year.
Me too! 
Which is why after seeing the Saker from Silencerco I think they’re onto something. They can swap out the rear mount with a thread on, their own current proprietary system, or a 51T AAC mount. And I’m sure down the road when some new whiz-bang contraption comes out they’ll find a way to mount onto it too. It’s a smart idea and I’d like to see more companies go to it.
I’d love a .30 cal can that I could thread onto one gun, fast attach to another, and throw on my friends gun who has a different mount. I’m hoping Silencerco comes out with a big brother to the Saker.
I can tell you right now the saker is going to suck ass.
It has way too many interfaces and joints to mount this can that have the possibility of becoming loose or getting fucked up.
It also has those retarded prongs on the end of it.
I have absolutely no issues with aac upgrading their mounting system. I don’t see why anyone does. Your m42000s are not obsolete. They’re the same as they were before shot. There is just a newer model available.
Aac is definitely full of retards (surefire, Ian). But you can’t blame them for designing new products. They will take a worn out/damaged can and give you a replacement at 50%. As they said “try towing your Volvo with 500,000 miles to the dealership and getting a new one for $15,000.”
The only thing I have a problem with are the dudes complaining that the cans they don’t even have yet are obsolete. You could always wait till May when the new ones start shipping, July until the form 3 comes back and January 2013 and have the latest and greatest - OR you could suck it the hell up and enjoy your absolutely ok M42000
I agree with what Euro says, but I would like the opportunity, even at a ridiculous price to upgrade the mounts so you wouldn’t have to have several different mounts. I didn’t intend for this to turn into a AAC bashfest. People just get pissed because BATFE (AKA Life Suckage) takes 5/6 months now and worse still in some cases.
Smart business is to keep your current customers happy. If I have to change mounting systems and I’m looking for a 300WM rated can. Now I look at Surefire. Which I am. Just let the almighty greenback direct company policy and R&D.
All in all, AAC has done a good job with my 5.56 cans. The Lifesuculation (defined as sucking life out of ones body) with the 7.62 mounts causing cans to wobble and AAC sticking their head in the sand and saying, “oh its OK” is the only real completely stupid thing they have done. They should fix 7.62SDN-6 to the 90 tooth design, and all would be forgiven. And its not too late for them to offer such a service.
At this point, I have my mini4 stamp coming and it will fit all my 51toofus set-ups. Thats all good.
It’s not that… it’s this…
WHY is there a 90 toofus mount??? Because they fucked up with the 51t. It doesn’t work consisently.
And AAC’s constant BS about… “It doesn’t hurt to run the can backed of one toof”…
HORSE SHIT!! Sure, it won’t hurt the can, but show me one rifle guru who advocates a heavy rattling weight on the end of a barrel as acceptable for achieving accuracy…