I’ve been thinking about buying a can for my ARs and settled on the mini4. My question is, after looking at AACs website it’s unclear on how it mounts. All it says is that the mount is a 51T ratchet mount. Does that mean you have to have the 51T muzzle brake or flash hider to mount it? Also, can it be pinned and welded on a 14.5 upper? I searched for mini4 and all that came up for a couple threads. Thanks in advance, this will be my first suppressor so I’m def a newb
Yes, you mount the mini4 to a 51T muzzle device.
Pinning and welding a 51T flash hider to a 14.5" barrel is pretty common.
Awesome, thanks. That’s what I thought I just wanted to be sure. They didn’t give as much detail on the mini4 as the other 3 5.56 suppressors. Is the street price on suppressors usually the same as msrp or are they usually a little less like with other products?
Iirc, a mini 4 can be had for $750.
Just a word on warning considering that you are not familiar with suppressors or mounts…
Afaik, AAC has already shown a replacement mount that makes the 51T mount and cans obsolete. The new 90T Taper mount was announced, then shelved and tentatively slated for release in 2013 but when is anyone’s guess. It might be in re-design, but the point is 51T is leaving.
Personally, I would not get into 51T now considering it’s stamped expiration date is coming up. Certainly not for pinning and welding, but also for being stuck with the 51T cans considering the expense and wait time with NFA.
I wouldn’t want to get stuck with an outdated mount. Surefire’s SOCOM uses a new mount that just came out that replaces their old ones and those are shipping now with a mini can option. Silencerco’s Saker uses an all new mount but they have said they will support their own as well as AAC’s 51T via a modular adapter, so there may be hope for old mount owners getting newer/better cans in the future. They haven’t said anything about a mini can though.
I wouldn’t sweat getting a 51T mount for a second. Pick up a spare mount when you get a chance and they’ll last you a long time… through the next 3 - 4 mount systems that they’ll come up with.
That mini is a nice can, and PERFECT for a gas gun.
Oh wow, that kind of scares me. I’m somewhat waiting till tax time before the purchase anyways. Maybe they’ll make the change by then
Also, one of my uppers is already a 14.5 pin/weld from the factory. My gunsmith/SOT manufacturer said that its possible to remove the pin and put a new brake on. Destroying the flash hider in the process but it should be ok from what he says
Eh… If the 51T was a SOLID mount, maybe I might agree. But it’s not. It’s OKAY but that’s about it’s best description, better than their 18T but that was shitty. If someone had the older Surefire mounts, fine, stick with it if you like, they aren’t bad. Or Gem-Tech’s Halo that attaches to A2 style flash hiders, fine, at least you have options. If you’re already into 51T on your rifles, fine.
But to be fresh and go with the marginal 51T knowing something better is coming to replace it? Nah, that’s bad advice.
Pick up a spare mount? What about when AAC releases a new can and it’s only for their new mount? I wouldn’t be worried about not being able to get the mounts themselves, but rather being pushed out of any new options further down the line.
There’s been some bad 18ts… and some 51ts that don’t lock solid.
The 51t can be modded to get it to lock up to the next click.
Unless there’s a can IN STOCK, at a dealer, I’ll never wait on these clowns in the industry. Plus, who’s to say that this new stupid mount is any better than the last mediocre mounts???
We run about 8 or 9 of those 51t mounts and none of them are problems worth hollering about.
Ok, all the 18T I’ve seen are horrible, and why would you recommend a design that needs to be modded?
Unless there’s a can IN STOCK, at a dealer, I’ll never wait on these clowns in the industry. Plus, who’s to say that this new stupid mount is any better than the last mediocre mounts???
Fair enough. I wouldn’t recommend any untested mount, just letting the OP know 51T isn’t great and it’s being phased out. If someone wanted a great mount I’m pretty sure the Sufefire socoms are going to be an improvement over their last mount which was adored by plenty. The Saker’s mount looks good as well, but no one really knows on that. As for AAC’s 90T, I read on forums (which must be the truth!) the taper lock seized up easily and that’s why it’s being redesigned.
We run about 8 or 9 of those 51t mounts and none of them are worth hollering about.
Fixed it for you 
OP: Mark is right about one thing at least. Look around at your options, and keep an eye on the market, but don’t lock into ANYTHING that is not in stock at your/a dealer. I wouldn’t go so far as to call the larger shops “clowns” but I would agree there has been a distinct lack of money being taken from customers when it comes to the newest designs.
If you’re looking at buying around tax time, I would say look around in a couple months at your options, but don’t obsess over anything that isn’t in stock. Fwiw, I’d go with Surefire’s new mini over the mini4 until AAC updates their mount.
I would not pin and weld ANY mount until you have the can purchased.
Speaking from experience with my SDN-6, mine locks up nice and tight with all my 51t mounts. However, a buddy of mine had issues with his and modified his mounts to correct it with no luck. I am satisfied with my can, but if I were to do it all over again I would buy a Surefire. They are more exspensive, but they have a quality product. Just my opinion.
I’m not spending $1300 on a can before the tax stamp. Especially when what I’ve read the surefire isn’t worth the $4-500 more over the mini4 and certainly not spending that much bc a couple people have issues or are extremely picky about the mount. And about not buying a can that’s not in stock at a dealer… I called today and they said they don’t have one but AAC has them in stock and would only take 2-3 weeks to get. That’s not really a big concern for me. If I could find another company with a brake/flash hider mount that looks similar to the AAC products and still gets the same reviews and is similar in price id consider them. But unless I find one, I’m sticking to the mini4 with 51T mount whether its obsolete next year or not. If everyone worried about how obsolete product A was gonna be next year (be it a vehicle or that latest flat screen tv), them nobody would buy anything. It’s part of it, and it’s not like the can is gonna stop working when something new comes out lol. I hate that elitism BS
Wow… well… you can lead a horse to water…
I wish I had a dollar every time a dealer or silencer mfg said “Two Weeks”. And unlike a car or flat screen TV, you’re buying a Gov regulated part that has a horrible secondary market, so what you buy you’ll pretty much be stuck with forever.
As far as what you’ve read… In this post two people who have experience with AAC mounts are recommending surefire. One guy says to modify the AAC mount to get it to work. Etc Etc. I would look into the Saker if you’re concerned that much with price.
But hey, if you want to learn a lesson the hard way, have fun. I’ll promise I won’t toss practical recommendations… erm “elitist bs” your way 
:lol:
I’m not worried about being stuck with it, I never sell my firearms or related products. 2 people isn’t a world view. You just seem bent out of shape bc I won’t take your word as the gospel. I asked how the mini4 attached, not which suppressor to get
Only you can decide and buy the suppressor that is right for you.
On that note if you do want to go the AAC route, try waiting for the 90t to come out like others have recommended. Waiting sucks but in the NFA world you will wait no matter what.
How come you want the mini4? Why not a full size suppressor?
I only ask because when I got my mini I wanted the rifle to be as short and compact as possible. Yet If I were to do it all over again I would have gotten the full size.
I want a mini mainly due to weight and size, and so it’s not so long on my 20" ar. I’ve got a complete 14.5 spikes pinned/weld, 16" bcm complete, and a 20" bcm. At first I was looking into the m4 2000 until I heard a few videos with the 4 5.56 AAC cans shot side by side and there wasn’t alot of difference between the mini and the 2000. So I figure why have all the weight and length if its not a huge difference
Not sure why you stated that, but moving forward, above was my honest opinion. If you have you mind set on the mini4, go right ahead.
Video doesn’t accurately capture gunshots, suppressed or unsuppressed. That said I’m a fan of mini cans. Right now you should be able to get a Surefire for $300 more than an AAC and that is what I recommend.