Quoted: Any chance you will be offering relief cut uppers for 7 62x39?  I love the idea of the multi-cal lower, but would like to have seperate uppers if possible.  I figure uppers are relatively cheap, so if you sell those I could just build my own upper, and use it on your lower. Scott

No plans for that right now, but you can modify your own by following the plans shown on the AR47.com website.
Their relief cuts have been tried with our lower system with the AK mags, and they work with it.

Quoted: What bolt does the .45 use

We don't have our 45ACP action system fully developed right now, so we expect that in the short term, people will use existing blowback actions on our lower. These blowback barrels and action parts can be installed into our QCB upper just like any other barrel and carrier.

However, we are developing a gas-operated pistol caliber system which will work with all of the pistol calibers, to make it easy to work with our system.
In this case, we will offer a bolt with the correct bolt-face size for the 45ACP, that will work in an AR15 carrier.
We're hoping to have that out in the not too distant future.

Quoted: Do you guys have a rough estimate on when you will start shipping the new QCB uppers? I'm on the waiting list right now, and i can't wait to get it. I'm already stocking up on some barrels and bolts. One of the main things i didn't like about the AR-15/ M-16 weapons was its lack of a quick change barrel system. But you guys changed that which is great.

The shipment of new QCB's arrived yesterday, and should be shipping by early next week. Some have even been already shipped.

Please contact me directly if you have questions.

Mack has left for Knob Creek today, and will be there all week-end.
He has an assortment of our new stuff there with him.
We don't have a booth, and he'll just be walking around, having some fun.
I think Jeff Zimba will be there with him.

If you're going to Knob Creek this weekend, keep an eye out for Mack.
He'll have an MGI hat and shirt on.
You can get a "hands-on" demonstration of our system.

Quoted: How 'bout... .30-'06 and BAR mags?

Too big for the platform.
We're doing everything we can to even shoe-horn a 308 in there!

However, we have another system in mind, for future development, that might work out nicely for the 06 and other larger cartridges.

Quoted: Sorry if this has been answered before, but what is the bolt compatiblity between the sytems?  Do you use the same bolt for 5.56 as for 7.62X39?  Do you have another for 308? I assume you have a specific bolt for the 9mm system, without the bolt lugs. Any plans for a 10mm version, or in 6.8 mm? Now I was told in the Army not to mix and match bolts and rifles - that the bolts wear with the chamber, and its bad practice to use a bolt in another rifle.  Is that not true, or is you system different so that you can use the same bolt, with mulitple barrels? Thanks,

The correct bolts should be used for each caliber that they are intended for.
The 7.62x39 requires a different bolt than 5.56/223 because they have different case head sizes, and thus different bolt-face sizes.
The 308 bolt is a special animal, and that will be part of the 308 system when it eventually gets released.

The 9mm magwells simply hold the magazines, and can be used with various systems in the upper, and blowback systems are the current typical way of doing it.
We intend to introduce gas operated pistol caliber systems in the future, that will make it easier to swap around.
6.8SPC is currently available and is a drop-in caliber change right now.
10mm can work in some modified magazines, but we have no specific magwells intended for that caliber right now.

AR15/M16 bolts are interchangeable, as long as headspace is not out of spec.
In practice, unless there is tremendous wear on one or both of the items, it will interchange fine. If there is any doubt, using a headspace guage would be suitable before using any previously unknown condition bolts or barrels.
Bolts are not numbered to the gun, and they were always designed to be interchangeable in the M16/AR15/M4.
Some people like to use matching sets of bolt/barrel, and that is just fine, and if you want to do that with our system, it will work out quite well.

It is a requirement however, that the correct bolt for the caliber be used with the barrel of that caliber, when doing caliber changes on the gun.

Quoted: Quoted: Quoted: DO you plan to offer a FAL magazine well for us 308 fans? The FAL has a center-feed magazine, which can be problematic for the AR15 system. The Bushmaster 308 system tried that, and failed. Not sure if the RRA system has overcome it. And these are in full-size rifles, larger than the AR15. If we feel we can do it, and have it work, we may have a try at it, IF the magazine can even fit into the necessary space, which we haven't looked at yet. The M14 mag is a better choice, from a design standpoint. Tom, Just curious, but were the original AR-10 pattern magazines considered (like the used by DPMS and KAC)? Justin

Yes, we're also taking a look at them too.
Ultimately, we'll probably go with whatever we can get the best fit with least modification.
So far, we're using the modded M14 mag for our development work.

Quoted: Serious coin, but having one gun that functions like 2+ makes it affordable if it's on your list -- ignoring any novelty value of something so innovative. Is the M1A magazine release going to be similar to the AK Mag release?  Does this include springloading (so that mags are gravity-droppable) -- that's the one last question on this (as I remember, the SR-47 has this done elaborately to retain full muscle memory)

Actually we have a pushbutton mag release that is very similar to the AR15 mag release, but it is positioned a little bit lower on the magwell. So. we've tried to keep as close the the "muscle memory" of the AR system as we could.

Yes, the mags do drop-free on their own, without having to pull them out. But, you still have to "rock" them in. And some AK mags vary quite a bit in thickness, so there might be some that are too fat to drop out easily(like the Bulgarian waffle mags), unless you sand the sides of the mags down a little.

Quoted: Quoted: I would emphasize that the QCB allows many calibers to be used, and that using dedicated separate uppers for caliber changing, defeats some of the most desirable attributes of this system. I realize that people are still very comfortable with doing things the "more traditional" way, but now there's something different that takes it to the next level. Only one upper is really needed now. The "backward compatibility" of our package, to be able to use the present-day types of AR15 products is both a testament to our system's flexibility, and also to allow easy transition from the old system to the new way. The thing that gets me though about the "traditional way" is that if I go from say 5.56x45 to a 6.8 SPC or 7.62x39 or even a pistol call upper then I don't have to worry about re-sighting the weapon's irons. Thats the only hang up I have about the MGI system right now. I wanted one when the QCB upper came out and the whole resighting thing hung me up on it, now with the modular magwell thing I want one even more, but again, it's that whole having to re-sight the irons if I change cals thats got me saying not just yet To put it into a little prspective, opening weekend of deer season goes like this for me, in the morning I hunt from a ground blind/stand, and I use a 308 or 30-06 in the afternoon we walk and I use either an AR in .223 or an AK. Now with a traditional upper swap I don't have to worry about re-sighting the upper for the cal change, but with the MGI system, I would have to. But when I'm out durring deer season I don't have access to a range or the time. So basicly the one place and time where this system really would come in handy and shine for me, I can't even really utilise it. And even if I were to use optics only I'd have to carry seperate optics for each cal I'd use Vs the traditional upper where the optic is already on it along with already sighted BUIS. I don't know if there really is a way to address that issue at all but ahve yall looked into any of that at all? Not bashing it at all mind you but thats just the one issue that has always hung me up on the whole thing. ETA:  I don't know if you remember or not but a good while back we talked about something in a 12ga and the possibilities of that. Is that something that might be down the road a bit with the modular magwell lower??

Okay, we recognize this.
Currently, we can provide pre-zeroing capability for elevation only, by zeroing-in each barrel at the range, when you first use the barrel. If you zero the barrel for elevation at the front sight post, it will be zeroed for elevation when you put it back in next time, as long as you leave your rear BUIS elevation adjustment alone.
Windage may vary some, but likely not much.
One of our upcoming projects includes a front sight for AR15 barrels that has windage and elevation adjustments on the flip-up front sight. Once this is available, you can just leave your rear BUIS adjusted at center, and do all the individual W&E adjustments for each barrel on the front sight of each barrel. Pre-zero each barrel at the range, using the W&E adjustments on the new front sights. Each time you return the barrel to the system then, it will be pre-zeroed for W&E, within a reasonable amount(typically less than MOA).
That will work for iron sights, and it will also work for Aimpoint or Eotech which have the co-witnessing capability. Simply verify the Aimpoint zero by co-witnessing with the irons, and make any adjustments to the Aimpoint to be equal to the irons of the new barrel you just put in.
With magnified scopes(no co-witness feature) you will either have to zero the scope, or rely on a really good QD mount that returns to zero extremely well(like LaRue), and leave that QD scope set up for the barrel you intend to use with it. Theoretically, with a really good mount, and a good fitting barrel in our system, you might be under 1MOA return to zero, even with a scope change and a barrel change. You'd have to check this out for yourself at the range, to verify what you can actually get with your combination, before relying on it in the field.

Our system does very well, but it's not magic. There can be limitations, and swapping scopes in-and-out of the system while changing barrels too, can show up some POI changes. Hopefully, they won't be large changes. Most shooters with regular commercial or milsurp ammo and rack-grade barrels will not likely even see any change in their groups or POI at all. If you are a target shooter, or sniper, then you are going to have to really "dope-out" the package to see what you can get, and in what circumstances.
I seriously doubt that any POI change you'll get, after getting a little experience using our system with your scope, that it will cause you to miss your deer, unless you might be shooting at a really far distance. In practice, we've seen as little as a quarterMOA return to zero in many circumstances with match barrels and ammo, but we're not going to guarantee that. Each person will need to verify the limits of their particular weapon system in combination. We only claim "reasonable" return to zero, because of the production nature of our system, and the many variables involved in all the hardware that may get used in it. If you spend some time with your sytem to get accustomed to it, and really "tune it in", you might find that it will surprise you how tight you can get a return to zero.

Shotgun systems may be a possibility in the future, but it is virtually assured that another upper, or at least major changes to the upper would be required to support that. Ejection of the spent shell is a big factor involved in that. The ejection port will need to be very large. We can get the shells in quite easily, but getting them out requires a large ejection port.

Quoted: Quoted: Any chance of a ARF.com price. I'll assume the answer is NO since you ignored the question.

I'm sorry to have ignored your question.

The answer is there is no special ARFcom discount at this time.

The costs involved in making this product are going to place it in the realm of "serious coin", no matter what.

The way to make it more cost effective, is to take advantage of the multiple magwells and the quick-change upper, so that it can take the place of multiple uppers and lowers, or even other guns.

However, we do like to favor the ARFcom members, and it is entirely possible that we could have a promotional sale on these at some time in the future, like we do with our other products here. We also have some limited production special runs in mind that might be aimed at the ARFcom enthusiasts.

Quoted: TWL: were HK G3 mags considered at all for the .308 project?

Yes, we will be looking at other possibilities for magazines, after we get everything ready in our first 308 experiment with M14 mags. I just want to say that this 308 project is not an easy project. It's never been done before, and there are alot of important aspects that have to be covered before we can release. We've already found some things along the way that needed strengthening and improving, and we'll probably find a few more before we're done.

Don't know offhand if the G3 mags will be of the outer dimensions that will even fit in. That is one of the big considerations.
I realize they are inexpensive to buy right now, and we've had a number of requests for them, primarily because of that.

What I can tell you is that we do plan to offer more than one magwell type in as many calibers as we can, to satisfy the market desire to use the mags they like, if possible. Our goal is to have alot of magwells, and we don't plan to just sit on the few magwells that we offer right now. We want wide versatility.

Have you looked into Thompson mags for the 45acp project?  They're far easier to load than Greasegun mags.

Quoted: Have you looked into Thompson mags for the 45acp project?  They're far easier to load than Greasegun mags.

Yep!
Thompson magwell is under development.

On the 308, the bolt-hold-open had to be sacrificed to get room to fit the magazine in.
Wish we could have kept it, but there was no way.


PS - I'm supposed to be getting some fresh pictures of all the latest stuff in from Mack sometime tonight.
I asked for "Glamour Shots".
We'll see what we get.
Anyway, I'll post the photos up as soon as I get them.

Quoted: Quoted: is it possible to leave the magwell attached to the upper and still remove it from the system? Actually that is what I do with mine.  I leave the AK mag well connected to my 7.62 upper when not in use.  Kinda nice as it doesn't get bounced around when I have it in my soft case.

Yes, sorry I missed that question.
Amphibian covered it nicely.

I can't comment on those particulars of the belt fed system at this time. I'm sure it will use readily available links.

My current estimation of availability for a 308 variation and a belt feed variation would be likely at the early part of next year, if all things go well.
If we can get it done before that, we will get it out as soon as we can.

If I may make a generalized observation here(not directed at you V188), I'm noticing that there are alot of comments about "I want this part, or I want that part", in very specific areas.
This leads me to believe that many people are still conceptualizing the product in parts, rather than a whole.
I'd like to re-emphasize that while these particular wants are indeed(or will be soon) parts of the product line, that this is/will be a complete system with many many different aspects and capabilities that go beyond a certain one or two things.
The real strength of the system is that it can do all of these things on a single platform, and is not a dedicated single-purpose device.
This is one of the big conceptual "leaps forward" which the MGI system comprises.
The idea of "I'll use this 16" 5.56 gun for my plinking, and then I'll buy a belt-fed machine gun, and then I'll get a 6.8SPC 11.5" SBR upper , etc", are all bygone times now.
This is a platform that is expandable and variable, and that is the strength of it. It's a one-gun system that can feature any and all of the things that many other separate guns and uppers can do, but is not dedicated to just one thing.
That is one of the major points that I wish to get across, and I hope I'm doing it.

It's all a matter of what we can get to fit into the system.
G3 mags are very big at the top, where the fit becomes the issue.

I know HK can use big mags in their 417, but the 417 is a big gun, like the AR10.

We're doing this in an AR15-sized platform, and that makes a big difference.


As for belt feed units in the future, it will be 5.56 first, and then we'll see about carrying it over into 7.62x39 and possibly others.
When we release it, we'll be able to provide the details.

Quoted: Any chance of producing the belt-fed upper so that could work with a normal lower?  I'm not particularly interested in buying the Hydra lower; I already have AR15's in the two calibers I'm interested in (5.56mm and 9mm).  It seems to me that the potential market for your belt-fed would be a lot greater if it would work with M16's.  Also, will the belt-fed use proprietary barrels or normal AR barrels?  Is it direct impingement or gas piston operation?

Our belt-fed package is designed to be in the lower module, not the upper. The upper is our standard QCB upper.
Our system will work with RDIAS.
We will be producing M16-type modular receivers for post-sample SOT use, as well as gov't use.
We'd be happy to produce transferable M16 type modular lowers for normal sale, if the gov't would let us do it, but they have some laws about restricting those things since 1986.
However, for M16 Registered Receiver users, we will be soon introducing some new fire control kits that drop into a RR. They will be an Open-Bolt Full-Auto-Only LMG fire control group, and an Open-Bolt Full-Auto/Closed-Bolt Semi-Auto Select-Fire fire control group.
Unfortunately at this time, we can't use our new fire control groups in our modular lower configuration, unless it is an SOT post-sample type. Those FCG's are for M16 Registered Receivers only, or post-samples, or gov't purchases.

All the barrels used for our QCB upper receiver are normal AR barrels, and are not proprietary. They just don't use a barrel nut anymore.

Currently all our offerings are for direct impingement use. We may eventually release a piston driven option, if it turns out that enough people are interested in a piston.

Quoted: Quoted: Currently all our offerings are for direct impingement use. We may eventually release a piston driven option, if it turns out that enough people are interested in a piston. I know what your current offerings are, I was wondering about the belt-fed, not the QCB. If you can't comment more until the SHOT show, just say so.

I tried to explain that our belt-fed has nothing to do with the upper. I'm really not trying to be evasive.

It's in the lower, as an add-on module, which replaces the magwells, on the interchangeable magwell mounting points.

The belt fed has nothing to do with piston or direct impingement, or anything else in the upper.
Not all belt-feed systems are in the upper. And ours isn't in the upper. It's in the lower. As an interchangeable module. It replaces the box mag magwells on the modular lower.

Edited to add:
It was designed this way, because we wanted to ensure compatibility with our QCB upper, without making people buy another upper after they already had our QCB.
We wanted to allow them to use our existing uppers, which would be the same upper as they would use with our modular lower, as our complete system.
This way, they could use box mags of different types and calibers with our magwells, and just switch to the belt-feed module on the lower if they wanted to. We already have the quick-change barrels in the upper, so that part was already there. All we needed was the feed mechanism, which Mack was able to design into an interchangeable module that would go right on our existing package.

It is all based around being able to use our modular platform as the same basis for all of our optional accessories. So, we try to make all our accessories compatible with our basic upper and lower receiver sections, and avoid having "multiple upper syndrome".

Quoted: Twl: Any new pics?

I'm waiting for new pics to arrive in my email.

Mack is scheduled to meet with Jeff Zimba, and have some "journalist quality" photos taken of the new stuff.

I will be sure to get them posted up as soon as I get them.